About that there was no doubt. At Pontoise, at Gournay, at Forges, Chief-inspector Ganimard, who was sent specially from Paris, with Inspector Folenfant, as his assistant, ascertained that a motor car had passed in the course of the previous night. The same on the road from Dieppe to Ambrumésy. And, though the traces of the car were lost at about a mile and a half from the château, at least a number of footmarks were seen between the little door in the park wall and the abbey ruins. Besides, Ganimard remarked that the lock of the little door had been forced. So all was explained. It remained to decide which inn the doctor had spoken of: an easy piece of work for a Ganimard, a professional ferret, a patient old stager of the police. The number of inns is limited and this one, given the condition of the wounded man, could only be one quite close to Ambrumésy. Ganimard and Sergeant Quevillon set to work. Within a circle of five hundred yards, of a thousand yards, of fifteen hundred yards, they visited and ransacked everything that could pass for an inn. But, against all expectation, the dying man persisted in remaining invisible. Ganimard became more resolved than ever. He came back to sleep at the château, on the Saturday night, with the intention of making his personal inquiry on the Sunday. On Sunday morning, he learned that, during the night, a posse of gendarmes had seen a figure gliding along the sunk road, outside the wall. Was it an accomplice who had come back to investigate? Were they to suppose that the leader of the gang had not left the cloisters or the neighborhood of the cloisters? That night, Ganimard openly sent the squad of gendarmes to the farm and posted himself and Folenfant outside the walls, near the little door. A little before midnight, a person passed out of the wood, slipped between them, went through the door and entered the park. For three hours, they saw him wander from side to side across the ruins, stooping, climbing up the old pillars, sometimes remaining for long minutes without moving. Then he went back to the door and again passed between the two inspectors. Ganimard caught him by the collar, while Folenfant seized him round the body. He made no resistance of any kind and, with the greatest docility, allowed them to bind his wrists and take him to the house. But, when they attempted to question him, he replied simply that he owed them no account of his doings and that he would wait for the arrival of the examining magistrate. Thereupon, they fastened him firmly to the foot of a bed, in one of the two adjoining rooms which they occupied. At nine o’clock on Monday morning, as soon as M. Filleul had arrived, Ganimard announced the capture which he had made. The prisoner was brought downstairs. It was Isidore Beautrelet.