III THE STREAK ON THE CUFF
IV THE MISSING GUEST
V THE LOCKED ROOM
VI THE MYSTERY OF CLEMENT HENSHAW
VII THE INCREDULITY OF GERVASE HENSHAW
VIII KELSON'S PERPLEXITY
IX THE CLOAK OF NIGHT
X AN ALARMING DISCOVERY
XI GIFFORD'S COMMISSION
XII HAD HENSHAW A CLUE?