Then she turned to Poirot suddenly.
“James sticks to it that you believe some one in the house committed the murder. All I can say is, you’re wrong.”
“I should not like to be wrong,” said Poirot. “It is not—how do you say—my métier?”
“I’ve got the facts pretty clearly,” continued Caroline, taking no notice of Poirot’s remark, “from James and others. As far as I can see, of the people in the house, only two could have had the chance of doing it. Ralph Paton and Flora Ackroyd.”
“My dear Caroline——”
“Now, James, don’t interrupt me. I know what I’m talking about. Parker met her outside the door, didn’t he? He didn’t hear her uncle saying good-night to her. She could have killed him then and there.”
“Caroline.”
“I’m not saying she did, James. I’m saying she could have done. As a matter of fact, though Flora is like all these young girls nowadays, with no veneration for their betters and thinking they know best on every subject under the sun, I don’t for a minute believe she’d kill even a chicken. But there it is. Mr. Raymond and Major Blunt have alibis. Mrs. Ackroyd’s got an alibi. Even that Russell woman seems to have one—and a good job for her it is she has. Who is left? Only Ralph and Flora! And say what you will, I don’t believe Ralph Paton is a murderer. A boy we’ve known all our lives.”
Poirot was silent for a minute, watching the curling smoke rise from his cigarette. When at last he spoke, it was in a gentle far-away voice that produced a curious impression. It was totally unlike his usual manner.
“Let us take a man—a very ordinary man. A man with no idea of murder in his heart. There is in him somewhere a strain of weakness—deep down. It has so far never been called into play. Perhaps it never will be—and if so he will go to his grave honored and respected by every one. But let us suppose that something occurs. He is in difficulties—or perhaps not that even. He may stumble by accident on a secret—a secret involving life or death to some one. And his first impulse will be to speak out—to do his duty as an honest citizen. And then the strain of weakness tells. Here is a chance of money—a great amount of money. He wants money—he desires it—and it is so easy. He has to do nothing for it—just keep silence. That is the beginning. The desire for money grows. He must have more—and more! He is intoxicated by the gold mine which has opened at his feet. He becomes greedy. And in his greed he overreaches himself. One can press a man as far as one likes—but with a woman one must not press too far. For a woman has at heart a great desire to speak the truth. How many husbands who have deceived their wives go comfortably to their graves, carrying their secret with them! How many wives who have deceived their husbands wreck their lives by throwing the fact in those same husbands’ teeth! They have been pressed too far. In a reckless moment (which they will afterwards regret, bien entendu) they fling safety to the winds and turn at bay, proclaiming the truth with great momentary satisfaction to themselves. So it was, I think, in this case. The strain was too great. And so there came your proverb, the death of the goose that laid the golden eggs. But that is not the end. Exposure faced the man of whom we are speaking. And he is not the same man he was—say, a year ago. His moral fiber is blunted. He is desperate. He is fighting a losing battle, and he is prepared to take any means that come to his hand, for exposure means ruin to him. And so—the dagger strikes!”