The window of his bedroom was so small that it was difficult to get through, and there was a drop of more than eight feet from the ledge to the hillside. After one or two attempts Colwyn got out feet foremost, and when half way through wriggled his body round until he was able to grasp the window-ledge and drop to the ground. The fall caused his heels to sink deeply into the clay of the hillside, which was moist and sticky after the rain. Colwyn closely examined the impression his heels had made, and then walked along until he stood underneath the window of the next room. It was an easy matter to climb through this window, which was larger, and closer to the ground--five feet from the hillside, at the most. Colwyn sprang on to the ledge, and tried the window with his hand. It was unlocked. He pushed up the lower pane, and entered the room. From the window he walked straight to the bedside, noting, as he walked, that his footsteps left on the carpet crumbs of the red earth from outside, similar to those which had been found in the room the morning after the murder. He next examined the broken incandescent burner in the chandelier in the middle of the room, and took careful measurements of the distances between the gas jet, the bedside and the door, observing, as he did so, that the gaslight was almost in a line with the foot of the bed. That was a point he had marked previously when Superintendent Galloway had suggested that the incandescent burner was broken by the murderer striking it with the corpse he was carrying. Colwyn had found it difficult to accept that point of view at the time, but now, in the light of recent discoveries, and the new theory of the crime which was gradually taking shape in his mind, it seemed almost incredible that the murderer, staggering under the weight of his ghastly burden, should have taken anything but the shortest track to the door. After examining the bed with an attentive eye, Colwyn next looked for the small door in the wall. It was not apparent: the wall-paper appeared to cover the whole of the wall on that side of the room in unbroken continuity. But a closer inspection revealed a slight fissure or crack, barely noticeable in the dark green wall-paper, extending an inch or so beyond a small picture suspended near the door of the room. When the picture was taken down the crack was more apparent, for it ran nearly the whole length of the space. The door had been papered over when the room was last papered, which was a long time ago, judging by the dingy condition of the wall-paper, and the crack had been caused by the shrinking of the woodwork of the door, as Colwyn had noticed the previous night. Colwyn let himself out of the room with the key Peggy had given him, locked the door behind him, and took the key down to the kitchen. It was still very early, and nobody was stirring. Having hung the key on the hook of the dresser, he returned to his room.