CHAPTER I
CARDONA HAS A HUNCH
CHAPTER II
A STRANGE DEATH
CHAPTER III
THE SECOND MESSAGE
CHAPTER IV
CARDONA MAKES PLANS
CHAPTER V
DEATH IN THE DARK
CHAPTER VI
DEATH UNEXPLAINED
CHAPTER VII
DEATH CONTINUES
CHAPTER VIII
A SINGLE CLEW
CHAPTER IX
THE SHADOW TAKES A HAND
CHAPTER X
THE WORRIED MAN
CHAPTER XI
AN INTERRUPTED WARNING
CHAPTER XII
DEATH TO THE SHADOW!
CHAPTER XIII
HOMER SPEAKS
CHAPTER XIV
THE SHADOW SEEKS
CHAPTER XV
THE FOURTH VICTIM
CHAPTER XVI
THE SHADOW’S WORK
CHAPTER XVII
THE THREE CLEWS
CHAPTER XVIII
THE HAND OF THE SHADOW
CHAPTER XIX
THE WORD OF THE SHADOW
CHAPTER XX
THE SHOT THAT TOLD
CHAPTER XXI
THE HIDDEN TRAP
CHAPTER XXII
THE SHADOW INTERVENES
CHAPTER XXIII
MURDER WILL OUT
CHAPTER XXIV
THE LAST DEATH
