Illustration: "The Earth, the Earth—thank God, the Earth!"

Contents

THE FIRST CRUISE OF THE ASTRONEF

About eight o'clock on the morning of the 5th of November, 1900, those of the passengers and crew of the American liner St. Louis who happened, whether from causes of duty or of their own pleasure, to be on deck, had a very strange—in fact a quite unprecedented experience.

The big ship was ploughing her way through the long, smooth rollers at her average twenty-one knots towards the rising sun, when the officer in charge of the navigating bridge happened to turn his glasses straight ahead. He took them down from his eyes, rubbed the two object-glasses with the cuff of his coat, and looked again. The sun was shining through a haze which so far dimmed the solar disc that it was possible to look straight at it without inconvenience to the eyes.

The officer took another long squint, put his glasses down, rubbed his eyes and took another, and murmured, "Well I'm damned!"

Just then the Fourth Officer came up on to the bridge to relieve his senior while he went down for a cup of coffee and a biscuit. The Second took him away to the other end of the bridge, out of hearing of the helmsman and the quartermaster standing by, and said almost in a whisper:

"Say, Norton, there's something ahead there that I can't make out. Just as the sun got clear above the horizon I saw a black spot go straight across it, right through the upper and lower limbs. I looked again, and it was plumb in the middle of the disc. Look," he went on, speaking louder in his growing excitement, "there it is again! I can see it without the glasses now. See?"

The Fourth did not reply at once. He had the glasses close to his eyes, and was moving them slowly about as though he were following some shifting object in the sky. Then he handed them back, and said:

"If I didn't believe the thing was impossible I should say that's an air-ship; but, for the present, I guess I'd rather wait till it gets a bit nearer, if it's coming. Still, there is something. Seems to be getting bigger pretty fast, too. Perhaps it would be as well to notify the old man. What do you think?"

"Guess we'd better," said the Second. "S'pose you go down. Don't say anything except to him. We don't want any more excitement among the people than we can help."

The Fourth nodded and went down the steps, and the Second began walking up and down the bridge, every now and then taking another squint ahead. Again and again the mysterious shape crossed the disc of the sun, always vertically as though, whatever it might be, it was steering a direct course from the sun to the ship, its apparent rising and falling being due really to the dipping of her bows into the swells.

"Well, Mr. Charteris, what's the trouble?" said the Skipper as he reached the bridge. "Nothing wrong, I hope? Have you sighted a derelict, or what? Ay, what in hell's that!"

His hands went up to his eyes and he stared for a few moments at the pale yellow oblate shape of the sun.

At this moment the St. Louis' head dipped again, and the Captain saw something like a black line swiftly drawn across the sun from bottom to top.

"That's what I wanted to call your attention to, sir," said the Second in a low tone. "I first noticed it crossing the sun as it rose through the mist. I thought it was a spot of dirt on my glasses, but it has crossed the sun several times since then, and for some minutes seemed to remain dead in the middle of it. Later on it got quite a lot larger, and whatever it is it's approaching us pretty rapidly. You see it's quite plain to the naked eye now."

By this time several of the crew and of the early loungers on deck had also caught sight of the strange thing which seemed to be hanging and swinging between the sky and the sea. People dived below for their glasses, knocked at their friends' state-room doors and told them to get up because something was flying towards the ship through the air; and in a very few minutes there were hundreds of passengers on deck in all varieties of early morning costume, and scores of glasses, held to anxious eyes, were being directed ahead.

The glasses, however, soon became unnecessary, for the passengers had scarcely got up on deck before the mysterious object to the eastward at length took definite shape, and as it did so mouths were opened as well as eyes, for the owners of the eyes and mouths beheld just then the strangest sight that travellers by sea or land had ever seen.

Within the distance of about a mile it swung round at right angles to the steamer's course with a rapidity which plainly showed that it was entirely obedient to the control of a guiding intelligence, and hundreds of eager eyes on board the liner saw, sweeping down from the grey-blue of the early morning sky, a vessel whose hull seemed to be constructed of some metal which shone with a pale, steely lustre.

It was pointed at both ends, the forward end being shaped something like a spur or ram. At the after end were two flickering, interlacing circles of a glittering greenish-yellow colour, apparently formed by two intersecting propellers driven at an enormous velocity. Behind these was a vertical fan of triangular shape. The craft appeared to be flat-bottomed, and for about a third of her length amidships the upper half of her hull was covered with a curving, domelike roof of glass.

"She's an air-ship of some sort, there's no doubt about that," said the Captain, "so I guess the great problem has got solved at last. And yet it ain't a balloon, because it's coming against the wind, and it's nothing of the æroplane sort neither, because it hasn't planes or kites or any fixings of that kind. Still it's made of something like metal and glass, and it must take a lot of keeping up. It's travelling at a pretty healthy speed too. Getting on for a hundred miles an hour, I should guess. Ah! he's going to speak us! Hope he's honest."

Everybody on board the St. Louis was up on deck by this time, and the excitement rose to fever-heat as the strange vessel swept down towards them from the middle sky, passed them like a flash of light, swung round the stern, and ranged up alongside to starboard some twenty feet from the bridge rail.

She was about a hundred and twenty feet long, with some twenty feet of depth and thirty of beam, and the Captain and many of his officers and passengers were very much relieved to find that, as far as could be seen, she carried no weapons of offence.

As she ranged up alongside, a sliding door opened in the glass-domed roof amidships, just opposite to the end of the St. Louis' bridge. A tall, fair-haired, clean-featured man, of about thirty, in grey flannels, tipped up his golf cap with his thumb, and said:

"Good morning, Captain! You remember me, I suppose? Had a fine passage, so far? I thought I should meet you somewhere about here."

The Captain of the St. Louis, in common with every one else on board, had already had his credulity stretched about as far as it would go, and he was beginning to wonder whether he was really awake; but when he heard the hail and recognised the speaker he stared at him in blank and, for the moment, speechless bewilderment. Then he got hold of his voice again and said, keeping as steady as he could:

"Good morning, my Lord! Guess I never expected to meet even you like this in the middle of the Atlantic! So the newspaper men were right for once in a way, and you have got an air-ship that will fly?"

"And a good deal more than that, Captain, if she wants to. I am just taking a trial trip across the Atlantic before I start on a run round the Solar System. Sounds like a lie, doesn't it? But it's coming off. Oh, good morning, Miss Rennick! Captain, may I come on board?"

"By all means, my Lord, only I'm afraid I daren't stop Uncle Sam's mails, even for you."

"There's no need for that, Captain, on a smooth sea like this," was the reply. "Just keep on as you are going and I'll come alongside."

He put his head inside the door and called something up a speaking-tube which led to a glass-walled chamber in the forward part of the roof, where a motionless figure stood before a little steering wheel.

The craft immediately began to edge nearer and nearer to the liner's rail, keeping speed so exactly with her that the threshold of the door touched the end of the bridge without a perceptible jar. Then the flannel-clad figure jumped on to the bridge and held out his hand to the Captain.

As they shook hands he said in a low tone, "I want a word or two in private with you, as soon as possible."

The commander saw a very serious meaning in his eyes. Besides, even if he had not made his appearance under such extraordinary circumstances, it was quite impossible that one of his social position and his wealth and influence could have made such a request without good reason for it, so he replied:

"Certainly, my Lord. Will you come down to my room?"

Hundreds of anxious, curious eyes looked upon the tall athletic figure and the regular-featured, bronzed, honest English face as Rollo Lenox Smeaton Aubrey, Earl of Redgrave, Baron Smeaton in the Peerage of England, and Viscount Aubrey in the Peerage of Ireland, followed the Captain to his room through the parting crowd of passengers. He nodded to one or two familiar faces in the crowd, for he was an old Atlantic ferryman, and had crossed five times with Captain Hawkins in the St. Louis.

Then he caught sight of a well and fondly remembered face which he had not seen for over two years. It was a face which possessed at once the fair Anglo-Saxon skin, the firm and yet delicate Anglo-Saxon features, and the wavy wealth of the old Saxon gold-brown hair; but a pair of big, soft, pansy eyes, fringed with long, curling, black lashes, looked out from under dark and perhaps just a trifle heavy eyebrows. Moreover, there was that indescribable expression in the curve of her lips and the pose of her head; to say nothing of a lissome, vivacious grace in her whole carriage which proclaimed her a daughter of the younger branch of the Race that Rules.

Their eyes met for an instant, and Lord Redgrave was startled and even a trifle angered to see that she flushed up quickly, and that the momentary smile with which she greeted him died away as she turned her head aside. Still, he was a man accustomed to do what he wanted: and what he wanted to do just then was to shake hands with Lilla Zaidie Rennick, and so he went straight towards her, raised his cap, and held out his hand saying, first with a glance into her eyes, and then with one upward at the Astronef:

"Good morning again, Miss Rennick! You see it is done."

"Good morning, Lord Redgrave!" she replied, he thought, a little awkwardly. "Yes, I see you have kept your promise. What a pity it is too late! But I hope you will be able to stop long enough to tell us all about it. This is Mrs. Van Stuyler, who has taken me under her protection on my journey to Europe."

His lordship returned the bow of a tall, somewhat hard-featured matron who looked dignified even in the somewhat nondescript costume which most of the ladies were wearing. But her eyes were kindly, and he said:

"Very pleased to meet, Mrs. Van Stuyler. I heard you were coming, and I was in hopes of catching you on the other side before you left. And now, if you will excuse me, I must go and have a chat with the Skipper." He raised his cap again and presently vanished from the curious eyes of the excited crowd, through the door of the Captain's apartment.

Captain Hawkins closed the door of his sitting-room as he entered, and said:

"Now, my Lord, I'm not going to ask you any questions to begin with, because if I once began I should never stop; and besides, perhaps you'd like to have your own say right away."

"Perhaps that will be the shortest way," said his lordship. "The fact is, we've not only the remains of this Boer business on our hands, but we've had what is practically a declaration of war from France and Russia. Briefly it's this way. A few weeks ago, while the Allies thought they were fighting the Boxers, it came to the knowledge of my brother, the Foreign Secretary, that the Tsung-li-Yamen had concluded a secret treaty with Russia which practically annulled all our rights over the Yang-tse Valley, and gave Russia the right to bring her Northern Railway right down through China.

"As you know, we've stood a lot too much in that part of the world already, but we couldn't stand this; so about ten days ago an ultimatum was sent declaring that the British Government would consider any encroachment on the Yang-tse Valley as an unfriendly act.

"Meanwhile France chipped in with a notification that she was going to occupy Morocco as a compensation for Fashoda, and added a few nasty things about Egypt and other places. Of course we couldn't stand that either, so there was another ultimatum, and the upshot of it all was that I got a wire late last night from my brother telling me that war would almost certainly be declared to-day, and asking me for the use of this craft of mine as a sort of dispatch-boat if she was ready. She is intended for something very much better than fighting purposes, so he couldn't ask me to use her as a war-ship; besides, I am under a solemn obligation to her inventor—her creator, in fact, for I've only built her—to blow her to pieces rather than allow her to be used as a fighting machine except, of course, in sheer personal self-defence.

"There is the telegram from my brother, so you can see there's no mistake, and just after it came a messenger asking me, if the machine was a success, to bring this with me across the Atlantic as fast as I could come. It is the duplicate of an offensive and defensive alliance between Great Britain and the United States, of which the details had been arranged just as this complication arose. Another is coming across by a fast cruiser, and, of course, the news will have got to Washington by cable by this time.

"By the time you get to the entrance of the Channel you will probably find it swarming with French cruisers and torpedo-destroyers, so if you'll be advised by me, you'll leave Queenstown out and get as far north as possible."

"Lord Redgrave," said the Captain, putting out his hand, "I'm responsible for a good bit right here, and I don't know how to thank you enough. I guess that treaty's been given away back to France by some of our Irish statesmen by now, and it'd be mighty unhealthy for the St. Louis to fall in with a French or Russian cruiser——"

"That's all right, Captain," said Lord Redgrave, taking his hand. "I should have warned any other British or American ship. At the same time, I must confess that my motives in warning you were not entirely unselfish. The fact is, there's some one on board the St. Louis whom I should decidedly object to see taken off to France as a prisoner of war."

"And may I ask who that is?" said Captain Hawkins.

"Why not?" replied his lordship. "It's the young lady I spoke to on deck just now, Miss Rennick. Her father was the inventor of that craft of mine. No one would believe his theories. He was refused patents both in England and America on the ground of lack of practical utility. I met him about two years ago, that is to say rather more than a year before his death, when I was stopping at Banff up in the Canadian Rockies. We made a travellers' acquaintance, and he told me about this idea of his. I was very much interested, but I'm afraid I must confess that I might not have taken it up practically if the Professor hadn't happened to possess an exceedingly beautiful daughter. However, of course I'm pretty glad now that I did do it; though the experiments cost nearly five thousand pounds and the craft herself close on a quarter of a million. Still, she is worth every penny of it, and I was bringing her over to offer to Miss Rennick as a wedding present, that is to say if she'd have it—and me."

Captain Hawkins looked up and said rather seriously:

"Then, my Lord, I presume you don't know——"

"Don't know what?"

"That Miss Rennick is crossing in the care of Mrs. Van Stuyler, to be married in London next month."

"The devil she is! And to whom, may I ask?" exclaimed his lordship, pulling himself up very straight.

"To the Marquis of Byfleet, son of the Duke of Duncaster. I wonder you didn't hear of it. The match was arranged last fall. From what people say she's not very desperately in love with him, but—well, I fancy it's like rather too many of these Anglo-American matches. A couple of million dollars on one side, a title on the other, and mighty little real love between them."

"But," said Redgrave between his teeth, "I didn't understand that Miss Rennick ever had a fortune; in fact I'm quite certain that if her father had been a rich man he'd have worked out his invention himself."

"Oh, the dollars aren't his. In fact they won't be hers till she marries," replied the Captain. "They belong to her uncle, old Russell Rennick. He got in on the ground floor of the New York and Chicago ice trusts, and made millions. He's going to spend some of them on making his niece a Marchioness. That's about all there is to it."

"Oh, indeed!" said Redgrave, still between his teeth. "Well, considering that Byfleet is about as big a wastrel as ever disgraced the English aristocracy, I don't think either Miss Rennick or her uncle will make a very good bargain. However, of course that's no affair of mine now. I remember that this Russell Rennick refused to finance his brother when he really wanted the money. He made a particularly bad bargain, too, then, though he didn't know it; for a dozen crafts like that, properly armed, would simply smash up the navies of the world, and make sea-power a private trust. After all, I'm not particularly sorry, because then it wouldn't have belonged to me. Well now, Captain, I'm going to ask you to give me a bit of breakfast when it's ready, and then I must be off. I want to be in Washington to-night."

"To-night! What, twenty-one hundred miles!"

"Why not?" said Redgrave; "I can do about a hundred and fifty an hour through the atmosphere, and then, you see, if that isn't fast enough I can rise outside the earth's attraction, let it spin round, and then come down where I want to."

"Great Scott!" remarked Captain Hawkins inadequately, but with emphasis. "Well, my Lord, I guess we'll go down to breakfast."

But breakfast was not quite ready, and so Lord Redgrave rejoined Miss Rennick and her chaperon on deck. All eyes and a good many glasses were still turned on the Astronef, which had now moved a few feet away from the liner's side, and was running along, exactly keeping pace with her.

"It's so wonderful, that even seeing doesn't seem believing," said the girl, when they had renewed their acquaintance of two years before.

"Well," he replied, "it would be very easy to convince you. She shall come alongside again, and if you and Mrs. Van Stuyler will honour her by your presence for half an hour while breakfast is getting ready, I think I shall be able to convince you that she is not the airy fabric of a vision, but simply the realisation in metal and glass and other things of visions which your father saw some years ago."

There was no resisting an invitation put in such a way. Besides, the prospect of becoming the wonder and envy of every other woman on board was altogether too dazzling for words.

Mrs. Van Stuyler looked a little aghast at the idea at first, but she too had something of the same feeling as Zaidie, and besides, there could hardly be any impropriety in accepting the invitation of one of the wealthiest and most distinguished noblemen in the British Peerage. So, after a little demur and a slight manifestation of nervousness, she consented.

Redgrave signalled to the man at the steering wheel. The Astronef slackened pace a little, dropped a yard or so, and slid up quite close to the bridge-rail again. Lord Redgrave got in first and ran a light gangway down on to the bridge. Zaidie and Mrs. Van Stuyler were carefully handed up. The next moment the gangway was drawn up again, the sliding glass doors clashed to, the Astronef leapt a couple of thousand feet into the air, swept round to the westward in a magnificent curve, and vanished into the gloom of the upper mists.

The situation was one which was absolutely without parallel in all the history of courtship from the days of Mother Eve to those of Miss Lilla Zaidie Rennick. The nearest approach to it would have been the old-fashioned Tartar custom which made it lawful for a man to steal his best girl, if he could get her first, fling her across his horse's crupper and ride away with her to his tent.

But to the shocked senses of Mrs. Van Stuyler the present adventure appeared a great deal more terrible than that. Both Zaidie and herself had sprung to their feet as soon as the upward rush of the Astronef had slackened and they were released from their seats. They looked down through the glass walls of what may be called the hurricane deck-chamber of the Astronef, and saw below them a snowy sea of clouds just crimsoned by the rising sun.

In this cloud-sea, which spread like a wide-meshed veil between them and the earth, there were great irregular rifts which looked as big as continents on a map. These had a blue-grey background, or it might be more correct to say under-ground, and in the midst of one of these they saw a little black speck which after a moment or two took the shape of a little toy ship, and presently they recognised it as the eleven-thousand-ton liner which a few moments ago had been their ocean home.

Mrs. Van Stuyler was shaking in every muscle, afflicted by a sort of St. Vitus' dance induced by physical fear and outraged propriety. Quite apart from these, however, she experienced a third sensation which made for a nameless inquietude. She was a woman of the world, well versed in most of its ways, and she fully recognised that that single bound from the bridge-rail of the St. Louis to the other side of the clouds had already carried her and her charge beyond the pale of human law.

The same thought, mingled with other feelings, half of wonder and half of re-awakened tenderness, was just then uppermost in Miss Zaidie's mind. It was quite obvious that the man who could create and control such a marvellous vehicle as this could, morally as well as physically, lift himself beyond the reach of the conventions which civilised society had instituted for its own protection and government.

He could do with them exactly as he pleased. They were utterly at his mercy. He might carry them away to some unexplored spot on one of the continents, or to some unknown island in the midst of the wide Pacific. He might even transport them into the midst of the awful solitudes which surround the Poles. He could give them the choice between doing as he wished, submitting unconditionally to his will, or committing suicide by starvation.

They had not even the option of jumping out, for they did not know how to open the sliding doors; and even if they had done, what feminine nerves could have faced a leap into that awful gulf which lay below them, a two-thousand-foot dive through the clouds into the waters of the wintry Atlantic?

They looked at each other in speechless, dazed amazement. Far away below them on the other side of the clouds the St. Louis was steaming eastward, and with her were going the last hopes of the coronet which was to be the matrimonial equivalent of Miss Zaidie's beauty and Russell Rennick's millions.

They were no longer of the world. Its laws could no longer protect them. Anything might happen, and that anything depended absolutely on the will of the lord and master of the extraordinary vessel which, for the present, was their only world.

"My dearest Zaidie," Mrs. Van Stuyler gasped, when she at length recovered the power of articulate speech, "what an entirely too awful thing this is! Why, it's abduction and nothing less. Indeed it's worse, for he's taken us clean off the earth, and there's no more chance of rescue than if he took us to one of those planets he said he could go to. If I didn't feel a great responsibility for you, dear, I believe I should faint."

By this time Miss Zaidie had recovered a good deal of her usual composure. The excitement of the upward rush, and what was left of the momentary physical fear, had flushed her cheeks and lighted her eyes. Even Mrs. Van Stuyler thought her looking, if possible, more beautiful than she had done under the most favourable of terrestrial circumstances. There was a something else too, which she didn't altogether like to see, a sort of resignation to her fate which, in a young lady situated as she was then, Mrs. Van Stuyler considered to be distinctly improper.

"It is rather startling, isn't it?" she said, with hardly a trace of emotion in her voice; "but I have no doubt that everything will be all right in the end."

"Everything all right, my dear Zaidie! What on earth, or I might say under heaven, do you mean?"

"I mean," replied Zaidie even more composedly than before, and also with a little tightening of her lips, "that Lord Redgrave is the owner of this vessel, and that therefore it is quite impossible that anything out of the way could happen to us—I mean anything more out of the way than this wonderful jump from the sea to the sky has been, unless, of course, Lord Redgrave is going to take us for a voyage among the stars."

"Zaidie Rennick!" said Mrs. Van Stuyler, bridling up into her most frigid dignity, "I am more than surprised to hear you talk in such a strain. Perfectly safe, indeed! Has it not struck you that we are absolutely at this man's—this Lord Redgrave's, mercy, that he can take us where he likes, and treat us just as he pleases?"

"My dear Mrs. Van," replied Zaidie, dropping back into her familiar form of address, but speaking even more frigidly than her chaperon had done, "you seem to forget that, however extraordinary our situation may be just now, we are in the care of an English gentleman. Lord Redgrave was a friend of my father's, the only man who believed in his ideals, the only man who realised them, the only man——"

"That you were ever in love with, eh?" said Mrs. Van Stuyler with a snap in her voice. "Is that so? Ah, I begin to see something now."

"And I think, if you possess your soul in patience, you will see something more before long," snapped Miss Zaidie in reply. Then she stopped abruptly and the flush on her cheek deepened, for at that moment Lord Redgrave came up the companion way from the lower deck carrying a big silver tray with a coffee pot, three cups and saucers, a rack of toast, and a couple of plates of bread and butter and cake.

Just then a sort of social miracle happened. The fact was that Mrs. Van Stuyler had never before had her early coffee brought to her by a peer of the British Realm. She thought it a little humiliating afterwards, but for the moment all sorts of conventional barriers seemed to melt away. After all she was a woman, and some years ago she had been a young one. Lord Redgrave was an almost perfect specimen of English manhood in its early prime. He was one of the richest peers in England, and he was bringing her her coffee. As she said afterwards, she wilted, and she couldn't help it.

"I'm afraid I have kept you waiting a long time for your coffee, ladies," said Redgrave, as he balanced the tray on one hand and drew a wicker table towards them with the other. "You see there are only two of us on board this craft, and as my engineer is navigating the ship, I have to attend to the domestic arrangements."

Mrs. Van Stuyler looked at him in the silence of mental paralysis. Miss Zaidie frowned, smiled, and then began to laugh.

"Well, of all the cold-blooded English ways of putting things——" she began.

"I beg your pardon?" said Lord Redgrave as he put the tray down on the table.

"What Miss Rennick means, Lord Redgrave," interrupted Mrs. Van Stuyler, struggling out of her paralytic condition, "and what I, too, should like to say, is that under the circumstances——"

"You think that I am not as penitent as I ought to be. Is that so?" said Redgrave, with a glance and a smile mostly directed towards Miss Zaidie. "Well, to tell you the truth," he went on, "I am not a bit penitent. On the contrary, I am very glad to have been able to assist the Fates as far as I have done."

"Assist the Fates!" gasped Mrs. Van Stuyler, helping herself shakingly to sugar, while Miss Zaidie folded a gossamer slice of bread and butter and began to eat it; "I think, Lord Redgrave, that if you knew all the circumstances, you would say that you were working against them."

"My dear Mrs. Van Stuyler," he replied, as he filled his own coffee cup, "I quite agree with you as to certain fates, but the Fates which I mean are the ones which, with good or bad reason, I think are working on my side. Besides, I do know all the circumstances, or at least the most important of them. That knowledge is, in fact, my principal excuse for bringing you so unceremoniously above the clouds."

As he said this he took a sideway glance at Miss Zaidie. She dropped her eyelids and went on eating her bread and butter; but there was a little deepening of the flush on her cheeks which was to him as the first flush of sunrise to a benighted wanderer.

There was a rather awkward silence after this. Miss Zaidie stirred the coffee in her cup with a dainty Queen Anne spoon, and seemed to concentrate the whole of her attention upon the operation. Then Mrs. Van Stuyler took a sip out of her cup and said:

"But really, Lord Redgrave, I feel that I must ask you whether you think that what you have done during the last few minutes (which already, I assure you, seem hours to me) is—well, quite in accordance with the—what shall I say—ah, the rules that we have been accustomed to live under?"

Lord Redgrave looked at Miss Zaidie again. She didn't even raise her eyelids, only a very slight tremor of her hand as she raised her cup to her lips told that she was even listening. He took courage from this sign, and replied:

"My dear Mrs. Van Stuyler, the only answer that I can make to that just now is to remind you that, by the sanction of ages, everything is supposed to be fair under two sets of circumstances, and, whatever is happening on the earth down yonder, we, I think, are not at war."

The next moment Miss Zaidie's eyelids lifted a little. There was a tremor about her lips almost too faint to be perceptible, and the slightest possible tinge of colour crept upwards towards her eyes. She put her cup down and got up, walked towards the glass walls of the deck-chamber, and looked out over the cloud-scape.

The shortness of her steamer skirt made it possible for Lord Redgrave and Mrs. Van Stuyler to see that the sole of her right boot was swinging up and down on the heel ever so slightly. They came simultaneously to the conclusion that if she had been alone she would have stamped, and stamped pretty hard. Possibly also she would have said things to herself and the surrounding silence. This seemed probable from the almost equally imperceptible motion of her shapely shoulders.

Mrs. Van Stuyler recognised in a moment that her charge was getting angry. She knew by experience that Miss Zaidie possessed a very proper spirit of her own, and that it was just as well not to push matters too far. She further recognised that the circumstances were extraordinary, not to say equivocal, and that she herself occupied a distinctly peculiar position.

She had accepted the charge of Miss Zaidie from her Uncle Russell for a consideration counted partly by social advantages and partly by dollars. In the most perfect innocence she had permitted not only her charge but herself to be abducted—for, after all, that was what it came to—from the deck of an American liner, and carried, not only beyond the clouds, but also beyond the reach of human law, both criminal and conventional.

Inwardly she was simply fuming with rage. As she said afterwards, she felt just like a bottled volcano which would like to go off and daren't.

About two minutes of somewhat surcharged silence passed. Mrs. Van Stuyler sipped her coffee in ostentatiously small sips. Lord Redgrave took his in slower and longer ones, and helped himself to bread and butter. Miss Zaidie appeared perfectly contented with her contemplation of the clouds.

At length Mrs. Van Stuyler, being a woman of large experience and some social deftness, recognised that a change of subject was the easiest way of retreat out of a rather difficult situation. So she put her cup down, leant back in her chair, and, looking straight into Lord Redgrave's eyes, she said with purely feminine irrelevance:

"I suppose you know, Lord Redgrave, that, when we left, the machine which we call in America Manhood Suffrage—which, of course, simply means the selection of a government by counting noses which may or may not have brains above them—was what some of our orators would call in full blast. If you are going to New York after Washington, as you said on the boat, we might find it a rather inconvenient time to arrive. The whole place will be chaos, you know; because when the citizen of the United States begins electioneering, New York is not a very nice place to stop in except for people who want excitement, and so if you will excuse me putting the question so directly, I should like to know what you just do mean to do——"

Lord Redgrave saw that she was going to add "with us," but before he had time to say anything, Miss Zaidie turned round, walked deliberately towards her chair, sat down, poured herself out a fresh cup of coffee, added the milk and sugar with deliberation, and then after a preliminary sip said, with her cup poised half-way between her dainty lips and the table:

"Mrs. Van, I've got an idea. I suppose it's inherited, for dear old Pop had plenty. Anyhow we may as well get back to common-sense subjects. Now look here," she went on, switching an absolutely convincing glance straight into her host's eyes, "my father may have been a dreamer, but still he was a Sound Money man. He believed in honest dealings. He didn't believe in borrowing a hundred dollars gold and paying back in fifty dollars silver. What's your opinion, Lord Redgrave; you don't do that sort of thing in England, do you? Uncle Russell is a Sound Money man too. He's got too much gold locked up to want silver for it."

"My dear Zaidie," said Mrs. Van Stuyler, "what have democratic and republican politics and bimetalism got to do with——"

"With a trip in this wonderful vessel which Pop told me years ago could go up to the stars if it ever was made? Why just this, Lord Redgrave is an Englishman and too rich to believe in anything but sound money, so is Uncle Russell, and there you have it, or should have."

"I think I see what you mean, Miss Rennick," said their host, leaning back in his chair and folding his hands behind his head, as steamboat travellers are wont to do when seas are smooth and skies are blue. "The Astronef might come down like a vision from the clouds and preach the Gospel of Gold in electric rays of silver through the commonplace medium of the Morse Code. How's that for poetry and practice?"

"I quite agree with his lordship as regards the practice," said Mrs. Van Stuyler, talking somewhat rudely across him to Zaidie. "It would be an excellent use to put this wonderful invention to. And then, I am sure his lordship would land us in Central Park, so that we could go to your Uncle's house right away."

"No, no, I'm afraid I must ask you to excuse me there, Mrs. Van Stuyler," said Redgrave, with a change of tone which Miss Zaidie appreciated with a swiftly veiled glance. "You see, I have placed myself beyond the law. I have, as you have been good enough to intimate, abducted—to put it brutally—two ladies from the deck of an Atlantic liner. Further, in doing so I have selfishly spoiled the prospects of one of the ladies. But, seriously, I really must go to Washington first——"

"I think, Lord Redgrave," interrupted Mrs. Van Stuyler, ignoring the last unfinished sentence and assuming her best Knickerbocker dignity, "if you will forgive me saying so, that that is scarcely a subject for discussion here."

"And if that's so," interrupted Miss Zaidie, "the less we say about it the better. What I wanted to say was this. We all want the Republicans in, at least all of us that have much to lose. Now, if Lord Redgrave was to use this wonderful air-ship of his on the right side—why there wouldn't be any standing against it."

"I must say that until just now I had hardly contemplated turning the Astronef into an electioneering machine. Still, I admit that she might be made use of in a good cause, only I hope——"

"That we shan't want you to paste her over with election bills, eh?—or start handbill-snowstorms from the deck—or kidnap Croker and Bryan just as you did us, for instance?"

"If I could, I'm quite sure that I shouldn't have as pleasant guests as I have now on board the Astronef. What do you think, Mrs. Van Stuyler?"

"My dear Lord Redgrave," she replied, "that would be quite impossible. The idea of being shut up in a ship like this which can soar not only from earth, but beyond the clouds, with people who would find out your best secrets and then perhaps shoot you so as to be the only possessors of them—well, that would be foolishness indeed."

"Why, certainly it would," said Zaidie; "the only use you could have for people like that would be to take them up above the clouds and drop them out. But suppose we—I mean Lord Redgrave—took the Astronef down over New York and signalled messages from the sky at night with a searchlight——"

"Good," said their host, getting up from his deck-chair and stretching himself up straight, looking the while at Miss Zaidie's averted profile. "That's gorgeously good! We might even turn the election. I'm for sound money all the time, if I may be permitted to speak American."

"English is quite good enough for us, Lord Redgrave," said Miss Zaidie a little stiffly. "We may have improved on the old language a bit, still we understand it, and—well, we can forgive its shortcomings. But that isn't quite to the point."

"It seems to me," said Mrs. Van Stuyler, "that we are getting nearly as far from the original subject as we are from the St. Louis. May I ask, Zaidie, what you really propose to do?"

"Do is not for us to say," said Miss Zaidie, looking straight up to the glass roof of the deck-chamber. "You see, Mrs. Van, we're not free agents. We are not even first-class passengers who have paid their fares on a contract ticket which is supposed to get them there."

"If you'll pardon me saying so," said Lord Redgrave, stopping his walk up and down the deck, "that is not quite the case. To put it in the most brutally material form, it is quite true that I have kidnapped you two ladies and taken you beyond the reach of earthly law. But there is another law, one which would bind a gentleman even if he were beyond the limits of the Solar System, and so if you wish to be landed either in Washington or New York it shall be done. You shall be put down within a carriage drive of your own residence, or of Mr. Russell Rennick's. I will myself see you to his door, and there we may say goodbye, and I will take my trip through the Solar System alone."

There was another pause after this, a pause pregnant with the fate of two lives. They looked at each other—Mrs. Van Stuyler at Zaidie, Zaidie at Lord Redgrave, and he at Mrs. Van Stuyler again. It was a kind of three-cornered duel of eyes, and the eyes said a good deal more than common human speech could have done.

Then Lord Redgrave, in answer to the last glance from Zaidie's eyes, said slowly and deliberately:

"I don't want to take any undue advantage, but I think I am justified in making one condition. Of course I can take you beyond the limits of the world that we know, and to other worlds that we know little or nothing of. At least I could do so if I were not bound by law as strong as gravitation itself; but now, as I said before, I just ask whether or not my guests or, if you think it suits the circumstances better, my prisoners, shall be released unconditionally wherever they choose to be landed."

He paused for a moment and then, looking straight into Zaidie's eyes, he added:

"The one condition I make is that the vote shall be unanimous."

"Under the circumstances, Lord Redgrave," said Mrs. Van Stuyler, rising from her seat and walking towards him with all the dignity that would have been hers in her own drawing-room, "there can only be one answer to that. Your guests or your prisoners, as you choose to call them, must be released unconditionally."

Lord Redgrave heard these words as a man might hear words in a dream. Zaidie had risen too. They were looking into each other's eyes, and many unspoken words were passing between them. There was a little silence, and then, to Mrs. Van Stuyler's unutterable horror, Zaidie said, with just the suspicion of a gasp in her voice:

"There's one dissentient. We are prisoners, and I guess I'd better surrender at discretion."

The next moment her captor's arm was round her waist, and Mrs. Van Stuyler, with her twitching fingers linked behind her back, and her nose at an angle of sixty degrees, was staring away through the blue immensity, dumbly wondering what on earth or under heaven was going to happen next.

After a couple of minutes of silence which could be felt, Mrs. Van Stuyler turned round and said angrily:

"Zaidie, you will excuse me, perhaps, if I say that your conduct is not—I mean has not been what I should have expected—what I did, indeed, expect from your uncle's niece when I undertook to take you to Europe. I must say——"

"If I were you, Mrs. Van, I don't think I'd say much more about that, because, you see, it's fixed and done. Of course, Lord Redgrave's only an earl, and the other is a marquis, but, you see, he's a man, and I don't quite think the other one is—and that's about all there is to it."

Their host had just left the deck-saloon, taking the early coffee apparatus with him, and Miss Zaidie, in the first flush of her pride and re-found happiness, was taking a promenade of about twelve strides each way, while Mrs. Van Stuyler, after partially relieving her feelings as above, had seated herself stiffly in her wicker-chair, and was following her with eyes which were critical and, if they had been twenty years younger, might also have been envious.

"Well, at least I suppose I must congratulate you on your ability to accommodate yourself to most extraordinary circumstances. I must say that as far as that goes I quite envy you. I feel as though I ought to choke or take poison, or something of that sort."

"Sakes, Mrs. Van, please don't talk like that!" said Zaidie, stopping in her walk just in front of her chaperon's chair. "Can't you see that there's nothing extraordinary about the circumstances except this wonderful ship? I have told you how Pop and I met Lord Redgrave in our tour through the Canadian Rockies two or three years ago. No, it's two years and nine months next June; and how he took an interest in Pop's theories and ideas about this same ship that we are on now——"

"Oh yes," said Mrs. Van Stuyler rather acidly, "and not only in the abstract ideas, but apparently in a certain concrete reality."

"Mrs. Van," laughed Zaidie, with a cunning twist on her heel, "I know you don't mean to be rude, but—well, now did any one ever call you a concrete reality? Of course it's correct just as a scientific definition, perhaps—still, anyhow, I guess it's not much good going on about that. The facts are just this way. I consented to marry that Byfleet marquis just out of sheer spite and blank ignorance. Lord Redgrave never actually asked me to marry him when we were in the Rockies, but he did say when he went back to England that as soon as he had realised my father's ideal he would come over and try and realise one of his own. He was looking at me when he said it, and he looked a good deal more than he said. Then he went away, and poor Pop died. Of course I couldn't write and tell him, and I suppose he was too proud to write before he'd done what he undertook to do, and I, like most girl-fools in the same place would have done, thought that he'd given the whole thing up and just looked upon the trip as a sort of interlude in globe-trotting, and thought no more about Pop's ideas and inventions than he did about his daughter."

"Very natural, of course," said Mrs. Van Stuyler, somewhat mollified by the subdued passion which Zaidie had managed to put into her commonplace words; "and so as you thought he had forgotten you and was finding a wife in his own country, and a possible husband came over from that same country with a coronet——"

"That'll do, Mrs. Van, thank you," interrupted Miss Zaidie, bringing her daintily-shod foot down on the deck this time with an unmistakable stamp. "We'll consider that incident closed if you please. It was a miserable, mean, sordid business altogether; I am utterly, hopelessly ashamed of it and myself too. Just to think that I could ever——"

Mrs. Van Stuyler cut short her indignant flow of words by a sudden uplifting of her eyelids and a swift turn of her head towards the companion way. Zaidie stamped again, this time more softly, and walked away to have another look at the clouds.

"Why, what on earth is the matter?" she exclaimed, shrinking back from the glass wall. "There's nothing—we're not anywhere!"

"Pardon me, Miss Rennick, you are on board the Astronef," said Lord Redgrave, as he reached the top of the companion way, "and the Astronef is at present travelling at about a hundred and fifty miles an hour above the clouds towards Washington. That is why you don't see the clouds and sea as you did after we left the St. Louis. At a speed like this they simply make a sort of grey-green blur. We shall be in Washington this evening, I hope."

"To-night, sir—I beg your pardon, my Lord!" gasped Mrs. Van Stuyler. "A hundred and fifty miles an hour! Surely that's impossible."

"My dear Mrs. Van Stuyler," said Redgrave, with a side-look at Zaidie, "nowadays 'impossible' is hardly an English or even an American word. In fact, since I have had the honour of realising some of Professor Rennick's ideas it has been relegated to the domain of mathematics. Not even he could make two and two more or less than four, but—well, would you like to come into the conning-tower and see for yourselves? I can show you a few experiments that will, at any rate, help to pass the time between here and Washington."

"Lord Redgrave," said Mrs. Van Stuyler, dropping gracefully back into her wicker armchair, "if I may say so, I have seen quite enough impossibilities, and—er, well—other things since we left the deck of the St. Louis to keep me quite satisfied until, with your lordship's permission, I set foot on solid ground again, and I should also like to remind you that we have left everything behind us on the St. Louis, everything except what we stand up in, and—and——"

"And therefore it will be a point of honour with me to see that you want for nothing while you are on board the Astronef, and that you shall be released from your durance——"

"Now don't say vile, Lenox—I mean——"

"It is perfectly plain what you mean, Zaidie," said Mrs. Van Stuyler, in a tone which seemed to send a chill through the deck-chamber. "Really, the American girl——"

"Just wants to tell the truth," laughed Zaidie, going towards Redgrave. "Lord Redgrave, if you like it better, says he wants to marry me, and, peer or peasant, I want to marry him, and that's all there is to it. You don't suppose I'd have——"

"My dear girl, there's no need to go into details," interrupted Mrs. Van Stuyler, inspired by fond memories of her own youth; "we will take that for granted, and as we are beyond the social region in which chaperons are supposed to be necessary, I think I will have a nap."

"And we'll go to the conning-tower, eh?"

"Breakfast will be ready in about half an hour," said Redgrave, as he took Zaidie by the arm and led her towards the forward end of the deck-chamber. "Meanwhile, au revoir! If you want anything, touch the button at your right hand, just as you would on board the St. Louis."

"I thank your lordship," said Mrs. Van Stuyler, half melting and half icy still. "I shall be quite content to wait until you come back. Really I feel quite sleepy."

"That's the effect of the elevation on the dear old lady's nerves," Redgrave whispered to Zaidie as he helped her up the narrow stairway which led to the glass-domed conning-tower, in which in days to come she was destined to pass some of the most delightful and the most terrible moments of her life.

"Then why doesn't it affect me that way?" said Zaidie, as she took her place in the little chamber, steel-walled and glass-roofed, and half filled with instruments of which she, Vassar girl and all as she was, could only guess the use.

"Well, to begin with, you are younger, which is an absolutely unnecessary observation; and in the second place, perhaps you were thinking about something else."

"By which I suppose you mean your lordship's noble self."

This was said in such a tone and with such an indescribable smile that there immediately ensued a gap in the conversation, and a silence which was a great deal more eloquent than any words could have made it.

When Miss Zaidie had got free again she put her hands up to her hair, and while she was patting it into something like shape again she said:

"But I thought you brought me here to show me some experiments, and not to——"

"Not to take advantage of the first real opportunity of tasting some of the dearest delights that mortal man ever stole from earth or sea? Do you remember that day when we were coming down from the big glacier—when your foot slipped and I just caught you and saved a sprained ankle?"

"Yes, you wretch, and went away next day and left something like a broken heart behind you! Why didn't you—Oh what idiots you men can be when you put your minds to it!"

"It wasn't quite that, Zaidie. You see, I'd promised your father the day before—of course I was only a younger son then—that I wouldn't say anything about realising my ideal until I had realised his, and so——"

"And so I might have gone to Europe with Uncle Russell's millions to buy that man Byfleet's coronet, and pay the price——"

"Don't, Zaidie, don't! That is quite too horrible to think of, and as for the coronet, well, I think I can give you one about as good as his, and one that doesn't want re-gilding. Good Lord, fancy you married to a thing like that! What could have made you think of it?"

"I didn't think," she said angrily; "I didn't think and I didn't feel. Of course I thought that I'd dropped right out of your life, and after that I didn't care. I was mad right through, and I'd made up my mind to do what others did—take a title and a big position, and have the outside as bright as I could get it, whatever the inside might be like. I'd made up my mind to be a society queen abroad, and a miserable woman at home—and, Lenox, thank God and you, that I wasn't!"

Then there was another interlude, and at the end of it Redgrave said:

"Wait till we've finished our honeymoon in space, and come back to earth. You won't want any coronets then, although you'll have one, for all the lands of earth won't hold another woman like yourself—your own sweet self! Of course it doesn't now, but—there, you know what I mean. You'll have been to other worlds, you'll have made the round trip of the Solar System, so to say, and——"

"And I think, dear, that is about promise of wonders enough, and of other things too—no, you are really quite too exacting. I thought you brought me here to show me some of the wonders that this marvellous ship of yours can work."

"Then just one more and I'll show you. Now you stand up there on that step so that you can see all round, and watch with all your eyes, because you are going to see something that no woman ever saw before."

Above a tiny little writing-desk fixed to the wall of the conning-tower there was a square mahogany board with six white buttons in pairs. On one side of the board hung a telephone and on the other a speaking-tube. To the right hand opposite where Zaidie stood were two nickel-plated wheels and behind each of them a white disc, one marked off into 360 degrees, and the other into 100 with subdivisions of tens. Overhead hung an ordinary tell-tale compass, and compactly placed on other parts of the wall were barometers, thermometers, barographs, and, in fact, practically every instrument that the most exacting of aeronauts or Space-explorers could have asked for.

"You see, Zaidie, this is what one might call the cerebral chamber of the Astronef, and, granted that my engines worked all right, I could make her do anything I wanted without moving out of here, but as a rule, of course, Murgatroyd is in the engine-room. If he wasn't the most whole-souled Wesleyan that Yorkshire ever produced, I believe he'd become an idolater and worship the Astronef's engines."

"And who is Murgatroyd, please?"

"In the first place he is what I might call an hereditary retainer of the House of Redgrave. His ancestors have served mine for the last seven hundred years. When my ancestors were burglar-barons, his were men-at-arms. When we went on the Crusades they went too; when we raised a regiment for the King against the Parliament they were naturally the first to enlist in it; and as we gradually settled down into peaceful respectability they did the same. Lastly, when we went into trade as ironmasters and engineers they went in too. This Murgatroyd, for instance, was master-foreman of my works at Smeaton, and he was the only man I dared trust with the secrets of the Astronef, and the only one I would trust myself on board her with, and that's why we're a crew of two. You see the command of a vessel like this is a fairly big business, and if it got into the wrong sort of hands——"

"Yes, I see," said Zaidie with a little nod. "It would be just too awful to think about. Why you might keep the world in terror with it; but I know you wouldn't do that, because, for one thing, I wouldn't let you."

"Gently, gently, Ma'm'selle; permit me most humbly to remind you that you are still my prisoner, and that I am still Commander of the Astronef."

"Oh, very well then," said Zaidie, interrupting him with a pretty little gesture of impatience, "and now suppose you let me see what the Astronef's commander can do with her."

"Certainly," replied Redgrave, "and with the greatest pleasure—but, by the way, that reminds me you haven't paid your footing yet."

When due payment had been given and taken, or perhaps it would be more correct to say taken and given, Redgrave put his finger on one of the buttons.

Immediately Zaidie heard the swish of the air past the smooth wall of the conning-tower grow fainter and fainter. Then there came a little check which nearly upset her balance, and presently the clouds beneath them began to take shape and great white continents of them with grey oceans in between went sweeping silently and swiftly away behind them.

Redgrave turned the wheel in front of the 100-degree disc a little to the left. The next instant the clouds rose up. For a moment Zaidie could see nothing but white mist on all sides. Then the atmosphere cleared again, and she saw far below her what looked like a vast expanse of ocean that had been suddenly frozen solid.

There were the long Atlantic rollers tipped with snowy foam. Here and there at wide intervals were little black dots, some of them with brown trails behind them, others with little patches of white which showed up distinctly against the dark grey-blue of the sea. Every moment they grew bigger. Then the white-crested waves began to move, and the big ocean steamers and full-rigged sailing ships looked less and less like toys. Just under them there was a very big one with four funnels pouring out dense volumes of black smoke. Redgrave took up a pair of glasses, looked at her for a moment and said:

"That's the Deutschland, the new Hamburg-American record-breaker. Suppose we go down and have a lark with her. I wonder if she's taking news of the war. We're in with Germany, and they may know something about it."

"That would be just too lovely!" said Zaidie. "Let's go and show them how we can break records. I suppose they've seen us by this time and are just wondering with all their wits what we are. I guess they'll feel pretty tired about poor Count Zeppelin's balloon when they see us."

Redgrave noted the "we" and the "us" with much secret satisfaction.

"All right," he said, "we'll go and give them a bit of a startler."

In front of the conning-tower there was a steel flagstaff about ten feet high, with halliards rove through a sheer in the top. He took a little roll of bunting out of a locker under the desk, opened a glass slide, brought in the halliards and bent the flag on.

Meanwhile the long shape of the great liner was getting bigger and bigger. Her decks were black, with people staring up at this strange apparition which was dropping upon them from the clouds. Another minute and the Astronef had dropped to within five hundred feet of the water, and about half a mile astern of the Deutschland. Redgrave turned the wheel back two or three inches and touched a second button.

The Astronef stopped her descent instantly, and then she shot forward. The new greyhound was making her twenty-two and a half knots, hurling a broad white torrent of foam away from under her counters. But in half a minute the Astronef was alongside her.

Redgrave ran the roll of bunting up to the top of the flagstaff, pulled one of the halliards, and the White Ensign of England floated out. Almost at the same moment the German flag went up to the staff at the stern of the Deutschland, and they heard a roar of cheers, mingled with cries of wonder, come up from her swarming decks.

Each flag was dipped thrice in due course. Redgrave took off his cap and bowed to the Captain on the bridge. Zaidie nodded and fluttered her handkerchief in reply to hundreds of others that were waving on the decks. Mrs. Van Stuyler woke up in wonder and waved hers instinctively, half longing to change crafts. In fact, if it hadn't been for her absolute devotion to the proprieties she would have obeyed her first impulse and asked Lord Redgrave to put her on board the steamer.

While the officers and crew and passengers of the Deutschland were staring wide-eyed and open-mouthed at the graceful glittering shape of the Astronef, Redgrave touched the first button in the second row once, moved the 100-degree wheel on a few degrees, and then gave the other a quarter turn. Then he closed the window slide, and the next moment Zaidie saw the great liner sink down beneath them in a curious twisting sort of way. She seemed to stop still and then spin round on her centre, getting smaller and smaller every moment.

"What's the matter, Lenox?" she said, with a little gasp. "What's the Deutschland doing? She seems to be spinning round on her own axis like a top."

"That's only the point of view, dear. She's just plugging along straight on her way to New York, and we've been making rings round her and going up all the time. But of course you don't notice the motion here any more than you would if you were in a balloon."

"But I thought you were going to speak them. Surely you don't mean to say that you intended that just as a little bit of showing off?"

"That's about what it comes to, I suppose, but you must not think it was altogether vanity. You see the German Government has bought Count Zeppelin's air-ship or steerable balloon, as it ought to be called, always supposing that they can steer it in a wind, and of course their idea is to make a fighting machine of it. Now Germany is engaged to stand by us in this trouble that's coming, and by way of cementing the alliance I thought it was just as well to let the wily Teuton know that there's something flying the British flag which could make very small mincemeat of their gas-bags."

"And what about Old Glory?" said Miss Zaidie. "The Astronef was built with English money and English skill, but——"

"She is the creature of American genius. Of course she is. In fact she is the first concrete symbol of the Anglo-American Alliance, and when the daughter of her creator has gone into partnership with the man who made her we'll have two flagstaff's, and the Jack and Old Glory will float side by side."

"And meanwhile where are we going?" asked Zaidie, after a moment's interval. "Ah, there we are through the clouds again. What makes us rise? Is that the force that Pop told me he discovered?"

"I'll answer the last question first," said Redgrave. "That was the greatest of your father's discoveries. He got at the secret of gravitation, and was able to analyse it into two separate forces just as Volta did with electricity—positive and negative, or, to put it better, attractive and repulsive.

"Three out of the five sets of engines in the Astronef develop the R. Force, as I call it for short. This wheel with the hundred degrees marked behind it regulates the development. The further I turn it this way to the right, the more the R. Force overcomes the attractive force of the earth or any other planet that we may visit. Turn it back, and gravitation asserts itself. If I put this arrow-head on the wheel opposite zero the weight of the Astronef is about a hundred and fifty tons, and of course she would go down like a stone, and a very big one at that. At ten she weighs nothing; that is to say the R. Force exactly counteracts gravitation. At eleven she begins to rise. At a hundred she would be hurled away from the earth like a shell from a twelve-inch gun, or even faster. Now, watch."

He took up the speaking-tube. "Is she all tight everywhere, Andrew?"

"Yes, my Lord," came gurgling through the tube.

Then Redgrave slowly turned the wheel till the indicator pointed to twenty-five. Zaidie, all eyes and wonder, saw a vast sea of glittering white spread out beneath them, an ocean of snow with grey-blue patches here and there. It sank away from under them till the patches became spots and the sunlit clouds a vast, luminous blur. The air about them grew marvellously clear and limpid. The sun blazed down on them with a tenfold intensity of light, but Zaidie was astonished to find that very little heat penetrated the glass walls and roof of the conning-tower.

"What an awful height!" she exclaimed, looking round at him with something like fear in her eyes. "How high are we, Lenox?"

"You'll find afterwards that the Astronef doesn't take any account of high or low or up or down," he replied, looking at the dial of an aneroid barometer by the side of him. "Roughly speaking, we're rather over 60,000 feet—say ten miles—from the surface of the Atlantic. That's why I asked Andrew whether everything was tight. You see we couldn't breathe the air there is outside there—too thin and cold—and so the Astronef makes her own atmosphere as we go along. But I won't spoil what you're going to see by any more of this. So if you please, we'll go down now and get along to Washington. Anyhow, I hope I've convinced you so far that I've kept my promise."