"I suppose," said Derek contemptuously, "that it was this conversation that you repeated to the Comte de la Roche."
Mirelle laughed.
"Am I a fool? Could the police do anything with a vague story like that? See—I will give you a last chance. You shall give up this Englishwoman. You shall return to me. And then, chéri, never, never will I breathe—"
"Breathe what?"
She laughed softly. "You thought no one saw you—"
"What do you mean?"
"As I say, you thought no one saw you—but I saw you, Dereek, mon ami; I saw you coming out of the compartment of Madame your wife just before the train got into Lyons that night. And I know more than that. I know that when you came out of her compartment she was dead."
He stared at her. Then, like a man in a dream he turned very slowly and went out of the room, swaying slightly as he walked.