| CHAPTER | PAGE |
| I. | The Girl in the Hansom Cab | [ 11] |
| II. | The Dark House in Selden’s Square | [ 20] |
| III. | In the Face of Strange Dangers | [ 31] |
| IV. | Kenyon is Drawn Deeper in the Maze | [ 41] |
| V. | Garry Webster, of Chicago | [ 52] |
| VI. | Kenyon has Another Odd Experience | [ 68] |
| VII. | The Bellevue Hospital Puzzle | [ 78] |
| VIII. | The Night Grows Thick with Wonder | [ 92] |
| IX. | Kenyon Goes Blindly On | [ 102] |
| X. | Hong Yo Strikes a Blow | [ 111] |
| XI. | The Second Night Ends | [ 121] |
| XII. | And the Third Night Begins | [ 133] |
| XIII. | Kenyon Meets an Old Acquaintance | [ 143] |
| XIV. | The Uninvited Guest | [ 151] |
| XV. | Kenyon in a New Rôle | [ 167] |
| XVI. | Kenyon Calls on the Man from Saginaw | [ 176] |
| XVII. | At the Girls’ Club in Mulberry Street | [ 193] |
| XVIII. | Kenyon Shows His Metal | [ 204] |
| XIX. | On Board the Vixen | [ 217] |
| XX. | Baffled | [ 226] |
| XXI. | Kenyon Begins to See the Light | [ 240] |
| XXII. | The Light Grows Stronger | [ 251] |
| XXIII. | What Kenyon Heard and Saw | [ 265] |
| XXIV. | Conclusion | [ 273] |