"No."
"But you saw them go out?"
"No, I can't say I did."
"In that case, how do you know that they went out?"
"From a gentleman who called yesterday afternoon."
"A gentleman with a dark mustache?"
"Yes. I met him as he was going away, about three o'clock. He said: 'The people in 415 have gone out. Mr. Kesselbach will stay at Versailles to-night, at the Reservoirs; you can send his letters on to him there.'"
"But who was this gentleman? By what right did he speak?"
"I don't know."
Gourel felt uneasy. It all struck him as rather queer.