“But surely it is not seven o’clock now?”

“No,” said Poirot gently, “it is a few minutes after five. Possibly the watch gains, is that so, madame?”

Mrs. Renauld was frowning perplexedly.

“It does gain,” she admitted, “but I’ve never known it to gain quite so much as that.”

With a gesture of impatience, the magistrate left the matter of the watch and proceeded with his interrogatory.

“Madame, the front door was found ajar. It seems almost certain that the murderers entered that way, yet it has not been forced at all. Can you suggest any explanation?”

“Possibly my husband went out for a stroll the last thing, and forgot to latch it when he came in.”

“Is that a likely thing to happen?”

“Very. My husband was the most absent-minded of men.”

There was a slight frown on her brow as she spoke, as though this trait in the dead man’s character had at times vexed her.