It was past noon now, and the soldiers sat down on a rock in the mild sunlight which poured over the dividing ledge, and talked of the strange situation.
"There have been human beings here," said Bromley; "at least two of them: the fellow who lived in that house, and the robber who looted it. Now I am not much of a detective, but it is certainly our business to find out how they got here and how they got away."
"How the robber got away," suggested Coleman; "for there is no doubt in my mind that the man who lived here was his victim."
"Yes," said Philip, "I am certain there was a murder committed here. Don't you see that if the murderer had carried off the books they would have been evidence against him sufficient to have convicted him of the crime?"
This view of Philip's was so plausible that the others adopted it. They assumed that the unfortunate victim had been shot in the open field, and buried where he fell. If the crime had been committed so long ago that the grass had found time to take root in the hard paths, it would have long since overgrown the shallow grave. Then it occurred to the soldiers, who had helped to bury the dead on more than one battle-field, that as time passes a shallow grave has a way of sinking. The murderer would have been careful not to raise a mound, and the very place of his crime should by this time be plainly marked by a long grassy hollow.
They started at once to search for the grave; but they were thirsty, not to say hungry, after their exertions of the morning, and so they went first to a spring which they had seen near the head of the path where they had climbed up. It was a large bubbling spring, and flowed under the rocks so nearly opposite to where the branch appeared on the other side that they knew it was the source of their own supply. It was not pleasant to think how easily their neighbor in his lifetime might have turned it in some other direction, thus stopping the wheels of their mill, and possibly leaving them to perish of thirst.
After they had lain down on the ground and drunk from the spring, they turned in the direction of the lonely house, flattering themselves that they were, after all, pretty clever detectives. By putting together the facts which they had now determined and proved, they had made a rather shrewd beginning at the discovery of a crime. They agreed, as they went along, that nothing further should be disturbed within or without the house until they should have unraveled the history of the foul murder. That was, they believed, the method observed by the best detectives and coroners. They might not establish their theory to-day or to-morrow, but they could go and come by the new path they had found, and sooner or later they would force the secret from the mute objects in the midst of which the crime had been committed.
As they arrived at this united and enthusiastic decision, they were approaching the house on the opposite side to that which they had passed on their first coming. The turf was so firmly rooted here that it was not easy to determine whether there had or had not been a garden on this side. A thick clump of young chestnut-trees had grown up since cultivation had been suspended, and as the three soldiers turned around these, they came suddenly upon something which exploded their fine-spun theories.