PREFACE
Dear Boys:—
I wonder if any of you are superstitious, or if you believe in “signs”? I, myself, do not, but as this happens to be the thirteenth book in the Motor Boys series, I just thought I’d mention it, more as a joke than anything else.
You know some persons think thirteen is unlucky. I do not, and I am sure you do not, either. So I venture to hope that I have been lucky enough to write for you, in this thirteenth volume, a book you will like better than any of the preceding ones that I have been happy to pen.
Certainly, Jerry, Ned and Bob, when they went after the radium treasure, on Snake Island, in the Grand Canyon of the Colorado, had a chance to believe in “signs” if they were so inclined. But when they saw the strange “ghosts” they were not a bit frightened, and, later on, they discovered the cause of them.
This story, though a complete tale in itself, is linked with the others in the series. It tells how the Motor Boys, hearing through Professor Snodgrass, of a place where radium was supposed to be located, set off to find it. They had many adventures, and were in not a little danger. Then, too, they had to proceed against Noddy Nixon, who had unlawfully taken their motorship.
I venture to hope that you will like this story, and that you will care for more about the boys, whom I have come to regard as very good friends of mine. I should dislike, very much indeed, saying good-bye to them.
So, wishing you all the pleasure possible in the reading of this story, I remain,
Yours cordially,
Clarence Young.