“And, anyway,” I continued, “what does it matter? The case is over. I wish you’d had more chance of distinguishing yourself. But it was the kind of case that even a stiff-backed idiot like that inspector couldn’t go wrong over.”
Poirot shook his head.
“The case is not over, my friend. It will not be over until we find out who stole the pearls.”
“But the maid did!”
“Why do you say that?”
“Why,” I stammered, “they were found—actually in her mattress.”
“Ta, ta, ta!” said Poirot impatiently. “Those were not the pearls.”
“What?”
“Imitation, mon ami.”
The statement took my breath away. Poirot was smiling placidly.