| CHAPTER | PAGE | |
| I. | An Imprudent Bear | 5 |
| II. | Ruggles—The Derelict | 15 |
| III. | Jack’s Adventure | 28 |
| IV. | A Battle Royal | 38 |
| V. | Caught in a Trap | 47 |
| VI. | An Exciting Quest | 57 |
| VII. | The Cloudburst | 68 |
| VIII. | Adrift on the Desert | 76 |
| IX. | The Lone Rancho | 91 |
| X. | After Midnight | 103 |
| XI. | Trapped | 116 |
| XII. | The Gringoes Move | 128 |
| XIII. | Senorita Alverado | 140 |
| XIV. | El Fiesta | 152 |
| XV. | By Fair Means or Foul | 164 |
| XVI. | A Border Boy Errant | 176 |
| XVII. | The Trail of the Trembling Mountain | 186 |
| XVIII. | Black Ramon’s Trickery | 197 |
| XIX. | What Coyote Did | 208 |
| XX. | With the Mexican Rangers | 224 |
| XXI. | The Captain Plays a Trick | 234 |
| XXII. | The Dwelling of a Vanished Race | 243 |
| XXIII. | The Heart of the Mystery | 255 |
| XXIV. | The Death Trap | 266 |