I stared at him. Surely the war had affected the little man’s brain. He was carefully engaged in brushing his coat before putting it on, and seemed wholly engrossed in the task.

“I don’t remember,” I said. “And, anyway, I don’t see——”

“You do not see? But it is of the first importance.”

“I can’t see why,” I said, rather nettled. “As far as I can remember, she didn’t eat much. She was obviously upset, and it had taken her appetite away. That was only natural.”

“Yes,” said Poirot thoughtfully, “it was only natural.”

He opened a drawer, and took out a small despatch-case, then turned to me.

“Now I am ready. We will proceed to the château, and study matters on the spot. Excuse me, mon ami, you dressed in haste, and your tie is on one side. Permit me.” With a deft gesture, he rearranged it.

Ça y est! Now, shall we start?”

We hurried up the village, and turned in at the lodge gates. Poirot stopped for a moment, and gazed sorrowfully over the beautiful expanse of park, still glittering with morning dew.

“So beautiful, so beautiful, and yet, the poor family, plunged in sorrow, prostrated with grief.”