"At the watercourse, of course, the footmarks ceased, because of the hard gravel. The body lay on a knoll at the left—a knoll covered with grass. On this the signs of footmarks were almost undiscoverable, although I am often able to discover tracks in grass that are invisible to others. Here, however, it was almost useless to spend much time in examination, for you and your man had been there, and what slight marks there might be would be indistinguishable one from another.

"Under the branch from which the man had hung there was an old tree stump, with a flat top, where the tree had been sawn off. I examined this, and it became fairly apparent that Sneathy had stood on it when the rope was about his neck—his muddy footprint was plain to see; the mud was not smeared about, you see, as it probably would have been if he had been stood there forcibly and pushed off. It was a simple, clear footprint—another hint at suicide.

"But then arose the objection that you mentioned yourself. Plainly the brothers Foster were following Sneathy, and came this way. Therefore, if he hanged himself before they arrived, it would seem that they must have come across the body. But now I examined the body itself. There was mud on the knees, and clinging to one knee was a small leaf. It was a leaf corresponding to those on the bush behind the tree, and it was not a dead leaf, so must have been just detached.

"After my examination of the body I went to the bush, and there, in the thick of it, were, for me, sufficiently distinct knee-marks, in one of which the knee had crushed a spray of the bush against the ground, and from that spray a leaf was missing. Behind the knee-marks were the indentations of boot-toes in the soft, bare earth under the bush, and thus the thing was plain. The poor lunatic had come in sight of the dangling rope, and the temptation to suicide was irresistible. To people in a deranged state of mind the mere sight of the means of self-destruction is often a temptation impossible to withstand. But at that moment he must have heard the steps—probably the voices—of the brothers behind him on the winding path. He immediately hid in the bush till they had passed. It is probable that seeing who the men were, and conjecturing that they were following him—thinking also, perhaps, of things that had occurred between them and himself—his inclination to self-destruction became completely ungovernable, with the result that you saw.

"But before I inspected the bush I noticed one or two more things about the body. You remember I inquired if either of the brothers Foster was left-handed, and was assured that neither was. But clearly the hand had been cut off by a left-handed man, with a large, sharply pointed knife. For well away to the right of where the wrist had hung the knife-point had made a tiny triangular rent in the coat, so that the hand must have been held in the mutilator's right hand, while he used the knife with his left—clearly a left-handed man.

"But most important of all about the body was the jagged hair over the right ear. Everywhere else the hair was well cut and orderly—here it seemed as though a good piece had been, so to speak, sawn off. What could anybody want with a dead man's right hand and certain locks of his hair? Then it struck me suddenly—the man was hanged; it was the Hand of Glory!

"Then you will remember I went, at your request, to see the footprints of the Fosters on the part of the path past the watercourse. Here again it was muddy in the middle, and the two brothers had walked as far apart as before, although nobody had walked between them. A final proof, if one were needed, of my theory as to the three lines of footprints.

"Now I was to consider how to get at the man who had taken his hand. He should be punished for the mutilation, but beyond that he would be required as a witness. Now all the foot-tracks in the vicinity had been accounted for. There were those of the brothers and of Sneathy, which we have been speaking of; those of the rustics looking on, which, however, stopped a little way off, and did not interfere with our sphere of observation; those of your man, who had cut straight through the wood when he first saw the body, and had come back the same way with you; and our own, which we had been careful to keep away from the others. Consequently there was no track of the man who had cut off the hand; therefore it was certain that he must have come along the hard gravel by the watercourse, for that was the only possible path which would not tell the tale. Indeed, it seemed quite a likely path through the wood for a passenger to take, coming from the high ground by the Shopperton road.

"Brett and I left you and traversed the watercourse, both up and down. We found a footprint at the top, left lately by a man with a broken shoe. Right down to the bottom of the watercourse where it emerged from the wood there was no sign on either side of this man having left the gravel. (Where the body was, as you will remember, he would simply have stepped off the gravel on to the grass, which I thought it useless to examine, as I have explained.) But at the bottom, by the lane, the footprint appeared again.