"Remembering the amount of the drug I had taken coming down, I took now twelve of the pills. Then, in a sudden panic, I hastily took two of the others. The result made my head swim most horribly. I sat or lay down, I forget which. When I looked up I saw the hills beyond the river and forest coming towards me, yet dwindling away beneath my feet as they approached. The incline seemed folding up upon itself, like a telescope. As I watched, its upper edge came into view, a curved, luminous line against the blackness above. Every instant it crawled down closer, more sharply curved, and its inclined surface grew steeper.

"All this time, as I stood still, the ground beneath my feet seemed to be moving. It was crawling towards me, and folding up underneath where I was standing. Frequently I had to move to avoid rocks that came at me and passed under my feet into nothingness.

"Then, all at once, I realized that I had been stepping constantly backward, to avoid the inclined wall as it shoved itself towards me. I turned to see what was behind, and horror made my flesh creep at what I saw. A black, forbidding wall, much like the incline in front, entirely encircled me. It was hardly more than half a mile away, and towered four or five thousand feet overhead.

"And as I stared in terror, I could see it closing in, the line of its upper edge coming steadily closer and lower. I looked wildly around with an overpowering impulse to run. In every direction towered this rocky wall, inexorably swaying in to crush me.

"I think I fainted. When I came to myself the scene had not greatly changed. I was lying at the bottom and against one wall of a circular pit, now about a thousand feet in diameter and nearly twice as deep. The wall all around I could see was almost perpendicular, and it seemed impossible to ascend its smooth, shining sides. The acti