| CHAPTER | PAGE |
| I. | The Boys of Oak Hall | [1] |
| II. | A Glimpse of the Past | [10] |
| III. | Three Chums on the River | [19] |
| IV. | A Plot to "Square Up" | [28] |
| V. | What the Plot Led To | [37] |
| VI. | The Fun of a Night | [46] |
| VII. | Gus Plum's Mysterious Offer | [55] |
| VIII. | Shadow Hamilton's Confession | [64] |
| IX. | About Athletic Contests | [72] |
| X. | How a Race was Won | [81] |
| XI. | A Fight and Its Result | [90] |
| XII. | Shadow as a Somnambulist | [100] |
| XIII. | A Photograph of Importance | [110] |
| XIV. | A Gleam of Light | [119] |
| XV. | Winding up the School Term | [128] |
| XVI. | Preparing for a Long Trip | [137] |
| XVII. | The Trip to the Far West | [146] |
| XVIII. | Sailing of the "Stormy Petrel" | [155] |
| XIX. | Days on the Ocean | [164] |
| XX. | Caught in a Storm | [174] |
| XXI. | Cavasa Island at Last | [183] |
| XXII. | About Some Missing Men | [192] |
| XXIII. | In Which the Supercargo is Cornered | [201] |
| XXIV. | The Cargo Mystery Explained | [210] |
| XXV. | Swept Onward by a Tidal Wave | [219] |
| XXVI. | Exploring a Tropical Island | [228] |
| XXVII. | A Map and a Plot | [237] |
| XXVIII. | Marooned | [245] |
| XXIX. | The Coming of the Natives | [254] |
| XXX. | The Retaking of the "Stormy Petrel" | [262] |
| XXXI. | Lifting the Curtain | [270] |
| XXXII. | Homeward Bound—Conclusion | [278] |