Untwisting my fingers from his thick fleece, I slipped down over his tail, and without as much as saying "Goodnight!" ran with all my speed towards the knoll. I climbed up; and sitting down upon a loose boulder of rock, looked over the prairie. The moon was still shining brightly. My late companion had halted not far from where I had left him, and stood glaring back with an air of extreme bewilderment. There was something so comical in the sight that I yelled with laughter as I sat securely on my perch. I looked to the south-west. As far as the eye could see, the prairie was black, and moving. The living wave came rolling onward and toward me; but I could now observe it in safety. The myriads of glancing eyes, sparkling like phosphoric gleams, no longer flashed terror. The drove was still half a mile distant. I thought I saw quick gleams, and heard the report of firearms away over its left border; but I could not be certain. I had begun to think of the fate of my comrades, and this gave me hopes that they were safe. The buffaloes approached the butte on which I was seated; and, perceiving the obstacle, suddenly forked into two great belts, and swept right and left around it. What struck me at this moment as curious was, that my bull, my particular bull, instead of waiting till his comrades had come up, and falling in among the foremost, suddenly tossed up his head, and galloped off as if a pack of wolves had been after him. He ran towards the outside of the band. When he had reached a point that placed him fairly beyond the flank, I could see him closing in, and moving on with the rest. This strange tactic of my late companion puzzled me at the time, but I afterwards learned that it was sound strategy on his part. Had he remained where I had parted with him, the foremost bulls coming up would have mistaken him for an individual of some other tribe, and would certainly have gored him to death. I sat upon the rock for nearly two hours, silently watching the sable stream as it poured past. I was on an island in the midst of a black and glittering sea. At one time I fancied I was moving, that the butte was sailing onward, and the buffaloes were standing still. My head swam with dizziness, and I leaped to my feet to drive away the strange illusion. The torrent rolled onward, and at length the hindmost went straggling past. I descended from the knoll, and commenced groping my way over the black, trodden earth. What was lately a green sward now presented the aspect of ground freshly ploughed, and trampled by droves of oxen. A number of white animals, resembling a flock of sheep, passed near me. They were wolves hanging upon the skirts of the herd. I pushed on, keeping to the southward. At length I heard voices; and, in the clear moonlight, could see several horsemen galloping in circles over the plain. I shouted "Hollo!" A voice answered mine, and one of the horsemen came galloping up; it was Saint Vrain.