We emerged from the lamp-room and, at the door, found the station-inspector waiting with a telegram. He handed it to the station-master, who read it aloud.
“The engine has been carefully examined by me. I find small smear of blood on near leading wheel and smaller one on next wheel following. No other marks.” He glanced questioningly at Thorndyke, who nodded and remarked: “It will be interesting to see if the line tells the same tale.”
The station-master looked puzzled and was apparently about to ask for an explanation; but the inspector, who had carefully pocketed the dead man’s property, was impatient to start and, accordingly, when Thorndyke had repacked his case and had, at his own request, been furnished with a lantern, we set off down the permanent way, Thorndyke carrying the light and I the indispensable green case.
“I am a little in the dark about this affair,” I said, when we had allowed the two officials to draw ahead out of ear shot; “you came to a conclusion remarkably quickly. What was it that so immediately determined the opinion of murder as against suicide?”
“It was a small matter but very conclusive,” replied Thorndyke. “You noticed a small scalp-wound above the left temple? It was a glancing wound, and might easily have been made by the engine. But—the wound had bled; and it had bled for an appreciable time. There were two streams of blood from it, and in both the blood was firmly clotted and partially dried. But the man had been decapitated; and this wound, if inflicted by the engine, must have been made after the decapitation, since it was on the side most distant from the engine as it approached. Now, a decapitated head does not bleed. Therefore, this wound was inflicted before the decapitation.
“But not only had the wound bled: the blood had trickled down in two streams at right angles to one another. First, in the order of time as shown by the appearance of the stream, it had trickled down the side of the face and dropped on the collar. The second stream ran from the wound to the back of the head. Now, you know, Jervis, there are no exceptions to the law of gravity. If the blood ran down the face towards the chin, the face must have been upright at the time; and if the blood trickled from the front to the back of the head, the head must have been horizontal and face upwards. But the man when he was seen by the engine driver, was lying face downwards. The only possible inference is that when the wound was inflicted, the man was in the upright position—standing or sitting; and that subsequently, and while he was still alive, he lay on his back for a sufficiently long time for the blood to have trickled to the back of his head.”
“I see. I was a duffer not to have reasoned this out for myself,” I remarked contritely.
“Quick observation and rapid inference come by practice,” replied Thorndyke. “What did you notice about the face?”
“I thought there was a strong suggestion of asphyxia.”
“Undoubtedly,” said Thorndyke. “It was the face of a suffocated man. You must have noticed, too, that the tongue was very distinctly swollen and that on the inside of the upper lip were deep indentations made by the teeth, as well as one or two slight wounds, obviously caused by heavy pressure on the mouth. And now observe how completely these facts and inferences agree with those from the scalp wound. If we knew that the deceased had received a blow on the head, had struggled with his assailant and been finally borne down and suffocated, we should look for precisely those signs which we have found.”