“Yes, yes, yes. Have I not told you so?”

“The police,” murmured Poirot, “will need proof of that⁠—er⁠—statement.”

“I tell you I saw him come out of her compartment that night on the train.”

“When?” asked Poirot sharply.

“Just before the train reached Lyons.”

“You will swear to that, Mademoiselle?”

It was a different Poirot who spoke now, sharp and decisive.

“Yes.”

There was a moment’s silence. Mirelle was panting, and her eyes, half defiant, half frightened, went from the face of one man to the other.