He stooped and stirred the fire into a welcome blaze—welcome for its blaze of light rather than for its heat. In the room there was already a strange pervading sensation of warmth that was oppressive in its effect and far from comforting.

“Of course,” he went on, straightening up again on the mat, “this was all commonplace enough—this seeing lights and figures at night. Most of these fellows drink, and imagination and terror between them may account for almost anything. But others saw things in broad daylight. One of the woodmen, a sober, respectable man, took the shortcut home to his midday meal, and swore he was followed the whole length of the wood by something that never showed itself, but dodged from tree to tree, always keeping out of sight, yet solid enough to make the branches sway and the twigs snap on the ground. And it made a noise, he declared—but really”—the speaker stopped and gave a short laugh—“it’s too absurd——”

Please!” insisted the doctor; “for it is these small details that give me the best clues always.”

“——it made a crackling noise, he said, like a bonfire. Those were his very words: like the crackling of a bonfire,” finished the soldier, with a repetition of his short laugh.

“Most interesting,” Dr. Silence observed gravely. “Please omit nothing.”

“Yes” he went on, “and it was soon after that the fires began—the fires in the wood. They started mysteriously burning in the patches of coarse white grass that cover the more open parts of the plantation. No one ever actually saw them start, but many, myself among the number, have seen them burning and smouldering. They are always small and circular in shape, and for all the world like a picnic fire. The head keeper has a dozen explanations, from sparks flying out of the house chimneys to the sunlight focusing through a dewdrop, but none of them, I must admit, convince me as being in the least likely or probable. They are most singular, I consider, most singular, these mysterious fires, and I am glad to say that they come only at rather long intervals and never seem to spread.

“But the keeper had other queer stories as well, and about things that are verifiable. He declared that no life ever willingly entered the plantation; more, that no life existed in it at all. No birds nested in the trees, or flew into their shade. He set countless traps, but never caught so much as a rabbit or a weasel. Animals avoided it, and more than once he had picked up dead creatures round the edges that bore no obvious signs of how they had met their death.

“Moreover, he told me one extraordinary tale about his retriever chasing some invisible creature across the field one day when he was out with his gun. The dog suddenly pointed at something in the field at his feet, and then gave chase, yelping like a mad thing. It followed its imaginary quarry to the borders of the wood, and then went in—a thing he had never known it to do before. The moment it crossed the edge—it is darkish in there even in daylight—it began fighting in the most frenzied and terrific fashion. It made him afraid to interfere, he said. And at last, when the dog came out, hanging its tail down and panting, he found something like white hair stuck to its jaws, and brought it to show me. I tell you these details because——”

“They are important, believe me,” the doctor stopped him. “And you have it still, this hair?” he asked.

“It disappeared in the oddest way,” the Colonel explained. “It was curious looking stuff, something like asbestos, and I sent it to be analysed by the local chemist. But either the man got wind of its origin, or else he didn’t like the look of it for some reason, because he returned it to me and said it was neither animal, vegetable, nor mineral, so far as he could make out, and he didn’t wish to have anything to do with it. I put it away in paper, but a week later, on opening the package—it was gone! Oh, the stories are simply endless. I could tell you hundreds all on the same lines.”