| CHAPTER | I. | A VILLAIN’S GREED. |
| CHAPTER | II. | THE WONDERFUL AIR-SHIP. |
| CHAPTER | III. | BARNEY GETS SQUARE WITH POMP. |
| CHAPTER | IV. | PRISONERS. |
| CHAPTER | V. | A DARING ESCAPE. |
| CHAPTER | VI. | FRANK’S SEARCH. |
| CHAPTER | VII. | ADVENTURES UNDERGROUND. |
| CHAPTER | VIII. | A TERRIBLE STORM. |
| CHAPTER | IX. | FRANK HAS AN INTERVIEW. |
| CHAPTER | X. | A DRAMATIC MEETING. |
| CHAPTER | XI. | OUTWITTING THE VILLAINS. |
| CHAPTER | XII. | RESCUE—THE TREASURE FOUND. |
| CHAPTER | XIII. | THE END. |