Transcriber’s Notes:
The original spelling, hyphenation, and punctuation have been retained, with the exception of apparent typographical errors which have been corrected.
For convenience, a table of contents, which is not present in the original, has been included.
CONTENTS
| CHAPTER | PAGE | |
| I. | THE BEGINNING OF A PLOT. | [5] |
| II. | BACK FROM THE DEAD. | [20] |
| III. | JIMMY DURYEA’S DARING. | [28] |
| IV. | THROWING THE GAUNTLET. | [37] |
| V. | THE GHOST OF JIMMY. | [46] |
| VI. | NICK MEETS DEFIANCE. | [55] |
| VII. | WHEN A MAN IS DESPERATE. | [65] |
| VIII. | PLOTTING AGAINST A PLOTTER. | [74] |
| IX. | EXCITEMENT IN THE NIGHT. | [83] |
| X. | A PLOT MOST FOUL | [93] |
| XI. | THE DIAMOND NECKLACE. | [103] |
| XII. | THE REVELATIONS OF NAN. | [112] |
| XIII. | THE LAYING OF THE GHOST. | [121] |
| XIV. | THE STOLEN IDENTITY. | [129] |
| XV. | A WOMAN OF MYSTERY. | [145] |
| XVI. | GOING AFTER JUNO. | [154] |
| XVII. | JUNO. | [163] |
| XVIII. | A DANGEROUS WOMAN. | [172] |
| XIX. | TRAILED BY FATALITIES. | [181] |
| XX. | THE SIREN EXERTS HER SKILL. | [190] |
| XXI. | THE SIREN AT WORK. | [199] |
| XXII. | A SECRET MISSION. | [218] |
| XXIII. | THE WORK OF A SECRET AGENT. | [234] |
| XXIV. | THE AMBASSADOR’S CABINET. | [243] |
| XXV. | THE HOLLOW BEDPOST. | [252] |
| XXVI. | THE WOMAN SPY. | [261] |
| XXVII. | IN THE NET OF A SIREN. | [270] |
| XXVIII. | A FIGHT IN THE STREET. | [287] |
| XXIX. | MURDER. | [296] |
| XXX. | BARE-FACED JIMMY’S DOUBLE. | [305] |