And, making a sign to me to deaden the sound of my steps, he led me across the path to the trunk of a tall beech tree, the white bole of which was visible in the darkness. This tree grew exactly in front of the window in which we were so much interested, its lower branches being on a level with the first floor of the château. From the height of those branches one might certainly see what was passing in Mademoiselle Stangerson’s chamber. Evidently that was what Rouletabille thought, for, enjoining me to remain hidden, he clasped the trunk with his vigorous arms and climbed up. I soon lost sight of him amid the branches, and then followed a deep silence. In front of me, the open window remained lighted, and I saw no shadow move across it. I listened, and presently from above me these words reached my ears:— “After you!” “After you, pray!” Somebody was overhead, speaking,—exchanging courtesies. What was my astonishment to see on the slippery column of the tree two human forms appear and quietly slip down to the ground. Rouletabille had mounted alone, and had returned with another. “Good evening, Monsieur Sainclair!” It was Frédéric Larsan. The detective had already occupied the post of observation when my young friend had thought to reach it alone. Neither noticed my astonishment. I explained that to myself by the fact that they must have been witnesses of some tender and despairing scene between Mademoiselle Stangerson, lying in her bed, and Monsieur Darzac on his knees by her pillow. I guessed that each had drawn different conclusions from what they had seen. It was easy to see that the scene had strongly impressed Rouletabille in favour of Monsieur Robert Darzac; while, to Larsan, it showed nothing but consummate hypocrisy, acted with finished art by Mademoiselle Stangerson’s fiancé. As we reached the park gate, Larsan stopped us. “My cane!” he cried. “I left it near the tree.” He left us, saying he would rejoin us presently. “Have you noticed Frédéric Larsan’s cane?” asked the young reporter, as soon as we were alone. “It is quite a new one, which I have never seen him use before. He seems to take great care of it—it never leaves him. One would think he was afraid it might fall into the hands of strangers. I never saw it before to-day. Where did he find it? It isn’t natural that a man who had never before used a walking-stick should, the day after the Glandier crime, never move a step without one. On the day of our arrival at the château, as soon as he saw us, he put his watch in his pocket and picked up his cane from the ground—a proceeding to which I was perhaps wrong not to attach some importance.” We were now out of the park. Rouletabille had dropped into silence. His thoughts were certainly still occupied with Frédéric Larsan’s new cane. I had proof of that when, as we came near to Epinay, he said:—