A word in the story had stirred up some remembrance within me, and vaguely curious, I asked the old man where the Gray Hills were. "Up there," he said, with the same gesture he had used before; "you go past the Fox and Hounds, and through the forest, by the old ruins. It's a good five mile from here, and a strange sort of a place. The poorest soil between this and Monmouth, they do say, though it's good feed for sheep. Yes, it was a sad thing for poor Mrs. Cradock." The old man turned to his work, and I strolled on down the path between the espaliers, gnarled and gouty with age, thinking of the story I had heard, and groping for the point in it that had some key to my memory. In an instant it came before me; I had seen the phrase "Gray Hills" on the slip of yellowed paper that Professor Gregg had taken from the drawer in his cabinet. Again I was seized with pangs of mingled curiosity and fear; I remembered the strange characters copied from the limestone rock, and then again their identity with the inscription on the age-old seal, and the fantastic fables of the Latin geographer. I saw beyond doubt that, unless coincidence had set all the scene and disposed all these bizarre events with curious art, I was to be a spectator of things far removed from the usual and customary traffic and jostle of life. Professor Gregg I noted day by day. He was hot on his trail, growing lean with eagerness; and in the evenings, when the sun was swimming on the verge of the mountain, he would pace the terrace to and fro with his eyes on the ground, while the mist grew white in the valley, and the stillness of the evening brought far voices near, and the blue smoke rose a straight column from the diamond-shaped chimney of the gray farmhouse, just as I had seen it on the first morning. I have told you I was of sceptical habit; but though I understood little or nothing, I began to dread, vainly proposing to myself the iterated dogmas of science that all life is material, and that in the system of things there is no undiscovered land even beyond the remotest stars, where the supernatural can find a footing. Yet there struck in on this the thought that matter is as really awful and unknown as spirit, that science itself but dallies on the threshold, scarcely gaining more than a glimpse of the wonders of the inner place.