That same evening Rouletabille and I left the Glandier. We were very glad to get away and there was nothing more to keep us there. I declared my intention to give up the whole matter. It had been too much for me. Rouletabille, with a friendly tap on my shoulder, confessed that he had nothing more to learn at the Glandier; he had learned there all it had to tell him. We reached Paris about eight o'clock, dined, and then, tired out, we separated, agreeing to meet the next morning at my rooms.
       Rouletabille arrived next day at the hour agreed on. He was dressed in a suit of English tweed, with an ulster on his arm, and a valise in his hand. Evidently he had prepared himself for a journey.
       "How long shall you be away?" I asked.
       "A month or two," he said. "It all depends."
       I asked him no more questions.
       "Do you know," he asked, "what the word was that Mademoiselle Stangerson tried to say before she fainted?"
       "No - nobody heard it."
       "I heard it!" replied Rouletabille. "She said 'Speak!'"
       "Do you think Darzac will speak?"
       "Never."
       I was about to make some further observations, but he wrung my hand warmly and wished me good-bye. I had only time to ask him one question before he left.
       "Are you not afraid that other attempts may be made while you're away?"
       "No! Not now that Darzac is in prison," he answered.
       With this strange remark he left. I was not to see him again until the day of Darzac's trial at the court when he appeared to explain the inexplicable.

Chapter I. In Which We Begin Not to Understand
Chapter II. In Which Joseph Rouktabille Appears for the First Time
Chapter III. "A Man Has Passed Like a Shadow Through the Blinds"
Chapter IV. "In the Bosom of Wild Nature'
Chapter V. In Which Joseph Rouletabille Makes a Remark to Monsieur Robert Darzac Which Produces Its Little Effect
Chapter VI. in the Heart of the Oak Grove
Chapter VII. In Which Rouletabille Sets Out on an Expedition Under the Bed
Chapter VIII. The Examining Magistrate Questions Mademoiselle Stangerson
Chapter IX. Reporter and Detective
Chapter X. We Shall Have to Eat Red Meat - Now"
Chapter XI. In Which Frederic Larsan Explains How the Murderer Was Able to Get Out of The Yellow Room
Chapter XII. Frederic Larsan's Cane
Chapter XIII. "The Presbytery Has Lost Nothing of Its Charm, Nor the Garden Its Brightness"
Chapter XIV. "I Expect the Assassin This Evening"
Chapter XV. The Trap
Chapter XVI. Strange Phenomenon of the Dissociation of Matter
Chapter XVII. The Inexplicable Gallery
Chapter XVIII. Rouletabille Has Drawn a Circle Between the Two Bumps on His Forehead
Chapter XIX. Rouletabille Invites Me to Breakfast at the Donjon Inn
Chapter XX. An Act of Mademoiselle Stangerson
Chapter XXI. On the Watch
Chapter XXII. The Incredible Body
Chapter XXIII. The Double Scent
Chapter XXIV. Rouletabille Knows the Two Halves of the Murderer
Chapter XXV. Rouletabille Goes on a Journey
Chapter XXVI. In Which Joseph Rouletabille Is Awaited with Impatience
Chapter XXVII. In Which Joseph Rouletabille Appears in All His Glory
Chapter XXVIII. In Which It Is Proved That One Does Not Always Think of Everything
Chapter XXIX. The Mystery of Mademoiselle Stangerson