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arrived with the rest, but—and this is significant—I can find no one who saw her come from the other wing." He looked at Mary Cavendish. "Am I right, madame?"
She bowed her head.
"Quite right, monsieur. You understand that, if I had thought I would do my husband any good by revealing these facts, I would have done so. But it did not seem to me to bear upon the question of his guilt or innocence."
"In a sense, that is correct, madame. But it cleared my mind of many misconceptions, and left me free to see other facts in their true significance."
"The will!" cried Lawrence. "Then it was you, Mary, who destroyed the will?"
She shook her head, and Poirot shook his also.
"No," he said quietly. "There is only one person who could possibly have destroyed that will—Mrs. Inglethorp herself!"
"Impossible!" I exclaimed. "She had only made it out that very afternoon!"
"Nevertheless, mon ami, it was Mrs. Inglethorp. Because, in no other way can you account for the fact that, on one of the hottest days of the year, Mrs. Inglethorp ordered a fire to be lighted in her room."
I gave a gasp. What idiots we had been never to think of that fire as being incongruous! Poirot was continuing:
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