"I'm afraid not," replied the sergeant. "There are no marks on the path itself—the rock is too hard, and so is the ground above, I fear. But I'll go over it carefully all the same."
The investigations being so far concluded, the body was lifted on to the stretcher, and the cortège, consisting of the bearers, the Doctor, and the fisherman, moved off towards the Gap, while the sergeant, having civilly wished us "Good-evening," scrambled up the Shepherd's Path, and vanished above.
"A very smart officer that," said Thorndyke. "I should like to know what he wrote in his notebook."
"His account of the circumstances of the murder seemed a very reasonable one," I said.
"Very. He noted the plain and essential facts, and drew the natural conclusions from them. But there are some very singular features in this case; so singular that I am disposed to make a few notes for my own information."
He stooped over the place where the body had lain, and having narrowly examined the sand there and in the place where the dead man's feet had rested, drew out his notebook and made a memorandum. He next made a rapid sketch-plan of the bay, marking the position of the body and the various impressions in the sand, and then, following the double track leading from and to the Shepherd's Path, scrutinized the footprints with the deepest attention, making copious notes and sketches in his book.
"We may as well go up by the Shepherd's Path," said Thorndyke. "I think we are equal to the climb, and there may be visible traces of the murderer after all. The rock is only a sandstone, and not a very hard one either."
We approached the foot of the little rugged track which zigzagged up the face of the cliff, and, stooping down among the stiff, dry herbage, examined the surface. Here, at the bottom of the path, where the rock was softened by the weather, there were several distinct impressions on the crumbling surface of the murderer's nailed boots, though they were somewhat confused by the tracks of the sergeant, whose boots were heavily nailed. But as we ascended the marks became rather less distinct, and at quite a short distance from the foot of the cliff we lost them altogether, though we had no difficulty in following the more recent traces of the sergeant's passage up the path.
When we reached the top of the cliff we paused to scan the path that ran along its edge, but here, too, although the sergeant's heavy boots had left quite visible impressions on the ground, there were no signs of any other feet. At a little distance the sagacious officer himself was pursuing his investigations, walking backwards and forwards with his body bent double, and his eyes fixed on the ground.
"Not a trace of him anywhere," said he, straightening himself up as we approached. "I was afraid there wouldn't be after all this dry weather. I shall have to try a different tack. This is a small place, and if those boots belong to anyone living here they'll be sure to be known."