At first, however, I held out a bit.

"But surely this story you tell," I said, "has the parentage common to all such tales—a superstitious heart and an imaginative brain—and has grown now by frequent repetition into an authentic ghost story? Besides, this head gardener of half a century ago," I added, seeing that he still went on cleaning his gun in silence, "who was he, and what positive information have you about him beyond the fact that he was found hanging from the rafters, dead?"

"He was no mere head gardener, this man who passed as such," he replied without looking up, "but a fellow of splendid education who used this curious disguise for his own purposes. Part of this very barn, of which he always kept the key, was found to have been fitted up as a complete laboratory, with athanor, alembic, cucurbite, and other appliances, some of which the master destroyed at once—perhaps for the best—and which I have only been able to guess at——"

"Black Arts," I laughed.

"Who knows?" he rejoined quietly. "The man undoubtedly possessed knowledge—dark knowledge—that was most unusual and dangerous, and I can discover no means by which he came to