“And now we come to Mr. Thesiger. One thing struck me at once. The bullet wound alone couldn’t have caused him to faint. Either he had fallen and hit his head⁠—or⁠—well, he hadn’t fainted at all. Later we had Miss St. Maur’s story. It agreed perfectly with Mr. Thesiger’s⁠—there was only one suggestive point. Miss St. Maur said that after the lights were turned out and Mr. Thesiger went over to the window, he was so still that she thought he must have left the room and gone outside. Now, if anyone is in the room, you can hardly help hearing their breathing if you are listening for it. Supposing, then, that Mr. Thesiger had gone outside. Where next? Up the ivy to Mr. O’Rourke’s room⁠—