Patrice began to lose the buoyant hope that had sustained him so far. He perceived that his elaborate sham regarding Coralie's death was a poor thing after all and that a man of his enemy's stamp might well refuse to be taken in by it. Feeling rather put out, he was on the point of going to sleep, when he heard the same creaking sound at the same spot. The need to do something made him jump out of bed. He turned on the light. Everything seemed to be as he had left it. There was no trace of a strange presence. "Well," said Patrice, "one thing's certain: I'm no good. The enemy must have smelt a rat and guessed the trap I laid for him. Let's go to sleep. There will be nothing happening to-night." There was in fact no alarm. Next morning, on examining the window, he observed that a stone ledge ran above the ground-floor all along the garden front of the house, wide enough for a man to walk upon by holding on to the balconies and rain-pipes. He inspected all the rooms to which the ledge gave access. None of them was old Siméon's room. "He hasn't stirred out, I suppose?" he asked the two soldiers posted on guard. "Don't think so, sir. In any case, we haven't unlocked the door." Patrice went in and, paying no attention to the old fellow, who was still sucking at his cold pipe, he searched the room, having it at the back of his mind that the enemy might take refuge there. He found nobody. But what he did discover, in a press in the wall, was a number of things which he had not seen on the occasion of his investigations in M. Masseron's company. These consisted of a rope-ladder, a coil of lead pipes, apparently gas-pipes, and a small soldering-lamp. "This all seems devilish odd," he said to himself. "How did the things get in here? Did Siméon collect them without any definite object, mechanically? Or am I to assume that Siméon is merely an instrument of the enemy's? He used to know the enemy before he lost his reason; and he may be under his influence at present." Siméon was sitting at the window, with his back to the room. Patrice went up to him and gave a start. In his hands the old man held a funeral-wreath made of black and white beads. It bore a date, "14 April, 1915," and made the twentieth, the one which Siméon was preparing to lay on the grave of his dead friends. "He will lay it there," said Patrice, aloud. "His instinct as an avenging friend, which has guided his steps through life, continues in spite of his insanity. He will lay it on the grave. That's so, Siméon, isn't it: you will take it there to-morrow? For to-morrow is the fourteenth of April, the sacred anniversary. . . ." He leant over the incomprehensible being who held the key to all the plots and counterplots, to all the treachery and benevolence that constituted the inextricable drama. Siméon thought that Patrice wanted to take the wreath from him and pressed it to his chest with a startled gesture.