“‘It was half-past twelve at night,’ this honest old man told us, ‘and I was in the laboratory, where Monsieur Stangerson was still working, when the thing happened. I had been cleaning and putting instruments in order all the evening and was waiting for Monsieur Stangerson to go to bed. Mademoiselle Stangerson had worked with her father up to midnight; when the twelve strokes of midnight had sounded by the cuckoo-clock in the laboratory, she rose, kissed Monsieur Stangerson and bade him good-night. To me she said “bon soir, Daddy Jacques” as she passed into “The Yellow Room.” We heard her lock the door and shoot the bolt, so that I could not help laughing, and said to Monsieur: “There’s Mademoiselle double-locking herself in,—she must be afraid of the ‘Bête du bon Dieu!’” Monsieur did not even hear me, he was so deeply absorbed in what he was doing. Just then we heard the distant miawing of a cat. “Is that going to keep us awake all night?” I said to myself; for I must tell you, Monsieur, that, to the end of October, I live in an attic of the pavilion over The Yellow Room, so that Mademoiselle should not be left alone through the night in the lonely park. It was the fancy of Mademoiselle to spend the fine weather in the pavilion; no doubt, she found it more cheerful than the château and, for the four years it had been built, she had never failed to take up her lodging there in the spring. With the return of winter, Mademoiselle returns to the château, for there is no fireplace in The Yellow Room. “‘We were staying in the pavilion, then—Monsieur Stangerson and me. We made no noise. He was seated at his desk. As for me, I was sitting on a chair, having finished my work and, looking at him, I said to myself: “What a man!—what intelligence!—what knowledge!” I attach importance to the fact that we made no noise; for, because of that, the assassin certainly thought that we had left the place. And, suddenly, while the cuckoo was sounding the half after midnight, a desperate clamour broke out in The Yellow Room. It was the voice of Mademoiselle, crying “Murder!—murder!—help!” Immediately afterwards revolver shots rang out and there was a great noise of tables and furniture being thrown to the ground, as if in the course of a struggle, and again the voice of Mademoiselle calling, “Murder!—help!—Papa!—Papa!—” “‘You may be sure that we quickly sprang up and that Monsieur Stangerson and I threw ourselves upon the door. But alas! it was locked, fast locked, on the inside, by the care of Mademoiselle, as I have told you, with key and bolt. We tried to force it open, but it remained firm. Monsieur Stangerson was like a madman, and truly, it was enough to make him one, for we heard Mademoiselle still calling “Help!—help!” Monsieur Stangerson showered terrible blows on the door, and wept with rage and sobbed with despair and helplessness.