“If the transom is too small to admit a man, it must have been a child.”

“A child!”

“Did you not say that your friend Henriette had a son?”

“Yes; a son named Raoul.”

“Then, in all probability, it was Raoul who committed the theft.”

“What proof have you of that?”

“What proof! Plenty of it.⁠ ⁠… For instance⁠—”

He stopped, and reflected for a moment, then continued: