“ M. Desjardeaux,” said Crowther. “Allow me to introduce to you M. Hercule Poirot of whom you may, perhaps, already have heard.”

The Frenchman bowed and shook hands.

“I have indeed heard of M. Hercule Poirot,” he said pleasantly. “Who has not?”

“You are too amiable, monsieur,” said Poirot, bowing, but his face flushed with pleasure.

“Any word for an old friend?” asked a quiet voice, and a man came forward from a corner by a tall bookcase.

It was our old acquaintance, Mr. Ingles.