“Good morning,” said Kettering. He went out, banging the door behind him.

Poirot leaned forward and spoke sharply, as soon as the young man was out of the room.

“Tell me,” he said peremptorily, “when did you speak of these rubies to M. Kettering?”

“I have not spoken of them,” said M. Carrège. “It was only yesterday afternoon that we learnt about them from M. Van Aldin.”

“Yes; but there was a mention of them in the Comte’s letter.”

M. Carrège looked pained.