Hastings had heard no sound at all. This confirmed my belief that Mrs. Cavendish was not speaking the truth when she declared that she had been dressing in her room at the time of the tragedy. In fact, I was convinced that, far from having been in her own room, Mrs. Cavendish was actually in the deceased’s room when the alarm was given.”

I shot a quick glance at Mary. She was very pale, but smiling.

“I proceeded to reason on that assumption. Mrs. Cavendish is in her mother-in-law’s room. We will


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of rumours than be arrested for murder. And I venture to think your poor lady would have felt the same. And, if it hadn’t been for Mr. Poirot here, arrested you would have been, as sure as eggs is eggs!”

“I was foolish, no doubt,” murmured Inglethorp. “But you do not know, inspector, how I have been


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