Chapter III: The Mysterious Reason
Chapter V: The Enchanted Violin
Chapter VI: A Visit to Box Five
Chapter VII: Faust and What Followed
Chapter VIII: The Mysterious Brougham
Chapter IX: At the Masked Ball
Chapter X: "Forget the Man's Voice!"
Chapter XI: Above the Trap Doors
Chapter XIII: A Master-Stroke of the Trap-Door Lover
Chapter XIV: The Singular Attitude of a Safety-Pin
Chapter XV: Christine! Christine!
Chapter XVI: Mme. Giry's Revelations
Chapter XVII: The Safety-Pin Again
Chapter XVIII: The Commisary, the Viscount and the Persian
Chapter XIX: The Viscount and the Persian
Chapter XX: In the Cellars of the Opera
Chapter XXI: Interesting Vicissitudes of a Persian
Chapter XXII: In the Torture Chamber
Chapter XXIII: The Torture Begins
Chapter XXIV: Barrels! Barrels!
Chapter XXV: The Scorpion or the Grasshopper: Which