his brow knitted, as though with some supreme mental effort. I felt that at last his keen intellect was asserting itself. What would his first words be? We were not long left in doubt. With a sigh, the tension of his attitude relaxed, and turning to Japp, he asked:
"Have you any idea, my friend, whether Mr. and Mrs. Davenheim occupied the same bedroom?"
The question seemed so ludicrously inappropriate that for a moment we both stared in silence. Then Japp burst into a laugh. "Good Lord, Monsieur Poirot, I thought you were coming out with something startling. As to your question, I'm sure I don't know."
"You could find out?" asked Poirot with curious persistence.
"Oh, certainly—if you really want to know."
"Merci, mon ami. I should be obliged if you would make a point of it."
Japp stared at him a few minutes longer, but Poirot seemed to have forgotten us both. The detective shook his head sadly at me, and murmuring, "Poor old fellow! War's been too much for him!" gently withdrew from the room.
As Poirot still seemed sunk in a daydream, I
