“As usual, you see nothing, Hastings. That last answer is, on the contrary, the coping-stone of my theory.”

I flung up my hands in despair.

“I give it up.”

• • • • • • •

When we were in the train, speeding towards London, Poirot wrote busily for a few minutes, sealing up the result in an envelope.

“This is for the good Inspector McNeil. We will leave it at Scotland Yard in passing, and then to the Rendezvous Restaurant, where I have asked Miss Esmée Farquhar to do us the honour of dining with us.”

“What about Ridgeway?”

“What about him?” asked Poirot with a twinkle.

“Why, you surely don’t think—you can’t——”

“The habit of incoherence is growing upon you, Hastings. As a matter of fact I did think. If Ridgeway had been the thief—which was perfectly possible—the case would have been charming; a piece of neat methodical work.”