| CHAPTER | PAGE | | I. | The Eagles at Home | 5 | | II. | The Face at the Transom | 14 | | III. | An Ocean Derelict | 26 | | IV. | A Mystery of the Sea | 36 | | V. | A Message from the Past | 46 | | VI. | A Startling Adventure | 53 | | VII. | Trapped by Flames | 61 | | VIII. | A Boy Scout Signal | 69 | | IX. | The Boys Meet a "Wolf" | 76 | | X. | A New Recruit | 84 | | XI. | Barton the Machinist | 95 | | XII. | The Submarine Island | 102 | | XIII. | Down to the Depths | 112 | | XIV. | Facing Death | 120 | | XV. | The Strange Flag | 129 | | XVI. | Scouting for Uncle Sam | 138 | | XVII. | Rob's Brave Act | 146 | | XVIII. | The Island Hut | 154 | | XIX. | A Chase in the Night | 163 | | XX. | On Board a Strange Craft | 173 | | XXI. | Off on a Sea Trail | 182 | | XXII. | A Midnight Adventure | 190 | | XXIII. | The Depths of Old Ocean | 198 | | XXIV. | Rob Makes a Discovery | 209 | | XXV. | The Dead Man's Hoard | 217 | | XXVI. | Which Will Win? | 228 | | XXVII. | The Endurance Run | 238 | | XXVIII. | The Supreme Test | 248 | | XXIX. | Into the Jaws of Death | 263 |
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