I was, as I have just said, walking up and down, and somewhat engrossed in my book. Suddenly, I heard a crash, away in the direction of the Pit. With a quick movement, I turned and saw a tremendous column of dust rising high into the evening air. My sister had risen to her feet, with a sharp exclamation of surprise and fright. Telling her to stay where she was, I snatched up my gun, and ran toward the Pit. As I neared it, I heard a dull, rumbling sound, that grew quickly into a roar, split with deeper crashes, and up from the Pit drove a fresh volume of dust. The noise ceased, though the dust still rose, tumultuously. I reached the edge, and looked down; but could see nothing save a boil of dust clouds swirling hither and thither. The air was so full of the small particles, that they blinded and choked me; and, finally, I had to run out from the smother, to breathe. Gradually, the suspended matter sank, and hung in a panoply over the mouth of the Pit. I could only guess at what had happened. That there had been a land-slip of some kind, I had little doubt; but the cause was beyond my knowledge; and yet, even then, I had half imaginings; for, already, the thought had come to me, of those falling rocks, and that Thing in the bottom of the Pit; but, in the first minutes of confusion, I failed to reach the natural conclusion, to which the catastrophe pointed. Slowly, the dust subsided, until, presently, I was able to approach the edge, and look down. For a while, I peered impotently, trying to see through the reek. At first, it was impossible to make out anything. Then, as I stared, I saw something below, to my left, that moved. I looked intently toward it, and, presently, made out another, and then another--three dim shapes that appeared to be climbing up the side of the Pit. I could see them only indistinctly. Even as I stared and wondered, I heard a rattle of stones, somewhere to my right. I glanced across; but could see nothing. I leant forward, and peered over, and down into the Pit, just beneath where I stood; and saw no further than a hideous, white swine-face, that had risen to within a couple of yards of my feet. Below it, I could make out several others. As the Thing saw me, it gave a sudden, uncouth squeal, which was answered from all parts of the Pit. At that, a gust of horror and fear took me, and, bending down, I discharged my gun right into its face. Straightway, the creature disappeared, with a clatter of loose earth and stones.