Aires being selected to give credence to the story that Renauld had decided upon. Having heard of me, as a rather obscure elderly detective, he wrote his appeal for help knowing that, when I arrived, the production of the letter would have a profound effect upon the examining magistrate—which, of course, it did.
“They dressed the body of the tramp in a suit of M. Renauld’s and left his ragged coat and trousers by the door of the shed, not daring to take them into the house. And then, to give credence to the tale Madame Renauld was to tell, they drove the airplane dagger through his heart. That night M. Renauld will first bind and gag his wife, and then, taking a spade, will dig a grave in that particular spot of ground where he knows a—how do you call it, bunkair?—is to be made. It is essential that the body should be found—Madame Daubreuil must have no suspicions. On the other hand, if a little time elapses, any dangers as to identity will be greatly lessened. Then, M. Renauld will don the tramp’s rags, and shuffle off to the station, where he will leave, unnoticed, by the twelve-ten train. Since the crime will be supposed to have taken place two hours later, no suspicion can possibly attach to him.
“You see now his annoyance at the inopportune visit of the girl Bella. Every moment of delay is fatal to his plans. He gets rid of her as soon as he can, however. Then, to work! He leaves the front door slightly ajar to create the impression that the assassins left that way. He binds and gags Madame Renauld, correcting his mistake of twenty-two years ago, when the looseness of the bonds caused suspicion to fall upon his accomplice, but leaving her primed with essentially the same story as he had invented before, proving the unconscious recoil of the mind against originality. The night is chilly, and he slips on an overcoat over his underclothing, intending to cast it into the grave with the dead man. He goes out by the window, smoothing over the flower-bed carefully, and thereby furnishing the most positive evidence against himself. He goes out onto the lonely golf links, and he digs—and then—"
“Yes?”
“And then,” said Poirot gravely, “the justice that he has so
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