Having obtained a light he took a survey of the room. The walls were bare, and there was no furniture in it. Casting his eyes upon the floor he was horrified to see it stained with fresh red blood upon which he was treading. He was so startled that he involuntarily pressed his left hand upon his heart, and raised his right hand, in which he held the lighted candle, in anticipation of a sudden attack. Then he discovered that he had cut that hand, and that the blood on the floor was his own. In his excitement he had not felt the pain of the wound. Wrapping his handkerchief round it, and drawing a deep breath of relief, he opened a door at the end of the room, and emerged into a passage, with a staircase leading to the rooms above. Ascending, he passed through another door which shut off this staircase from the better parts of the house, and found himself on a landing with which he was familiar, for on this floor was situated the office in which he used to work, another staircase at the end of the landing leading down to the front entrance. He knew now where he was, and in which direction to proceed. All his movements had been made with extreme caution, and almost at every step he took he paused and prepared for a surprise. But he was not interrupted in any way, and there was nothing to indicate that he was not master of the situation. It troubled him to observe that his footsteps left traces of blood behind them; these dark stains conveyed a suggestion that he had been engaged in a guilty deed. "Do I look like a murderer?" he thought. "I feel like one." Before he entered the office he descended to the ground floor passage to ascertain if the street door was fast, and he was surprised to see the key lying on the mat. It was a sign of some significance, for had Samuel Boyd left his house for any length of time he would most certainly have locked the door from the outside and taken the key with him. But, assuming that this was not the case, why was not the key in the lock, and assuming, further, that Samuel Boyd had retired to rest, why was not the door bolted and chained? Confused by the thought, Dick turned the key in the lock, opened the door an inch or two, and looked out upon Catchpole Square. All was silent and still. Dark clouds were scudding across the sky, with a heavy-hearted presage in them; such was the impression the gloom of night produced upon Dick. He reclosed and locked the door, and returned to the passage above.