Whyland, having cautioned the man to say nothing until the inquest, left the house and walked into the confectioner’s shop. Here he interviewed Mr. Briggs and his daughter Marjorie, and obtained from them the story of Mr. Martin’s arrival at Number 407, and of the telephone message from Mr. Lacey. By this time the body had been conveyed to the mortuary, and Whyland set to work to examine the contents of the dead man’s pockets. His most interesting discoveries were the letter which he had received on Saturday morning and the missing key of Number 407.