CHAPTER I. THE PURPLE SAPPHIRE
CHAPTER II. A MIDNIGHT VISITOR
CHAPTER III. TWO MEN INVESTIGATE
CHAPTER IV. CLARENDON EXPLAINS
CHAPTER V. A STRANGE INTERVIEW
CHAPTER VI. THE SHADOW STRIKES!
CHAPTER VII. PALERMO TALKS BUSINESS
CHAPTER VIII. ANOTHER MAN DIES
CHAPTER IX. THE SHADOW’S AGENTS
CHAPTER X. PALERMO PLANS
CHAPTER XI. DEAD MEN DO NOT TELL
CHAPTER XII. THE NET TIGHTENS
CHAPTER XIII. WHAT WARWICK LEARNED
CHAPTER XIV. PALERMO’S MESSAGE
CHAPTER XV. WANTED — THE SHADOW
CHAPTER XVI. PALERMO MOVES
CHAPTER XVII. THELDA TELLS
CHAPTER XVIII. IN THE LAIR
CHAPTER XIX. THE MASTER APPEARS
CHAPTER XX. PALERMO’S THRUST
CHAPTER XXI. THE SHADOW DEPARTS
