Juve went up the five floors to the flat formerly occupied by Gurn, reflecting somewhat moodily. Of course Gurn's arrest was a success, and it was satisfactory to have the scoundrel under lock and key, but in point of fact Juve had learned nothing new in consequence of the arrest, and he was obsessed with the idea that this murder of Lord Beltham was an altogether exceptional crime. He did not yet know why Gurn had killed Lord Beltham, and he did not even know exactly who Gurn himself was; all he could declare was that the murder had been planned and carried out with marvellous audacity and skill, and that was not enough. Juve let himself into the flat and closed the door carefully behind him. The rooms were in disorder, the result of the searches effected by the police. The rent had not been paid for some time, and as no friend or relation had come forward to assume control of Gurn's interests, the furniture and ornaments of the little flat were to be sold by auction. The detective walked through the rooms, then flung himself into an arm-chair. He did not know precisely why he had come. He had searched the place a dozen times already since his discovery of the corpse within the trunk, and had found nothing more, no tell-tale marks or fresh detail, to assist in the elucidation of the mystery. He would have given very much to be able to identify Gurn with some other of the many criminals who had passed through his hands, and still more to be able to identify him with that one most mysterious criminal whose fearful deeds had shocked the world so greatly. Somehow the particular way in which this murder was committed, the very audacity of it, led him to think, to "sense," almost to swear that---- Juve got up. It was little in accord with his active temperament to sit still. Once more he went all round the flat.