CONTENTS
| CHAPTER | PAGE | |
| I. | [An Automobile Accident] | 1 |
| II. | [A Mysterious Cave] | 11 |
| III. | [Saving the Auto] | 22 |
| IV. | [Planning a Cruise] | 30 |
| V. | [Captain Wiggs’s Proposal] | 39 |
| VI. | [In Peril] | 45 |
| VII. | [An Elevator Blaze] | 52 |
| VIII. | [Fenn Hears Something] | 61 |
| IX. | [Off Again] | 71 |
| X. | [The Chase] | 78 |
| XI. | [On Lake Huron] | 85 |
| XII. | [Ned Gets a Fish] | 92 |
| XIII. | [Caught in the Lock] | 99 |
| XIV. | [Mysterious Strangers] | 108 |
| XV. | [A Queer Find] | 115 |
| XVI. | [Fire on Board] | 123 |
| XVII. | [A Strange Vision] | 133 |
| XVIII. | [An Exploring Party] | 140 |
| XIX. | [Fenn Becomes Ill] | 147 |
| XX. | [Out on a Hunt] | 155 |
| XXI. | [The Chinese Button] | 162 |
| XXII. | [Fenn’s Mishap] | 171 |
| XXIII. | [The Search] | 180 |
| XXIV. | [Fenn Is Captured] | 188 |
| XXV. | [An Unexpected Meeting] | 194 |
| XXVI. | [Fenn’s Odd Discovery] | 202 |
| XXVII. | [A Timely Rescue] | 213 |
| XXVIII. | [Ruth Tells Her Secret] | 220 |
| XXIX. | [A Baffling Search] | 230 |
| XXX. | [The Discovery—Conclusion] | 239 |
FENN MASTERSON’S
DISCOVERY
CHAPTER I
AN AUTOMOBILE ACCIDENT
“Hello!” exclaimed Fenn Masterson, as he opened the front door of his home, in response to a ring, and admitted his chum, Bart Keene. “Glad to see you, Bart. Come on in.”