The blacks stopped short when they found they were discovered, and spread out in the form of a semicircle; then they closed in until, with their _wimmeras_, they could make sure of throwing their spears with precision and effect. I waited until I also could make sure of my man, and then, as one of them drew back his arm to lever his spear home, I raised my revolver and fired. He dropped all of a heap, like a bullock that has been knocked on the head with an axe. A spear whizzed past me and buried itself in the thick bark of a ti tree close to my head. My blood was up, but I took deliberate aim, and the savage who had thrown it also bit the dust. At eighty yards my Colt was almost as deadly as a rifle. Somewhat taken by surprise, the blacks retired, and I emptied the remaining chambers of my revolver at them with effect. I even made to follow them up, reloading as I walked, and they actually broke and ran before me. This was exactly what I wanted, and I seized my opportunity. I turned and dived into the brown, tawny-crested creek, and by vigorous side-strokes made for a narrow, island-like strip of wooded land that stood right in the middle of the stream. I had all but passed it when I caught hold of an overhanging bough and drew myself into a thick clump of reeds and undergrowth. I stood up to the arm-pits in water. There was now some seventy yards between me and the bank I had just left--about half the distance I had yet to accomplish. As I expected, the blacks, who had rallied, now appeared on the scene. Quick as thought I placed my soft-felt hat brim downwards on the water, and away it went sailing down that boiling torrent. The blacks saw it, and thought they had me now safely enough; they directed spear after spear at it, but I noticed that none of them took effect; they ran along the bank in a great state of excitement, shouting and skipping, and in a few minutes more were out of sight. If my hat would only continue to float it might lead them quite a nice little goose-chase. I waited for some time, and was just about to strike out for the opposite shore when, to my no little surprise and chagrin, two of the savages returned. They went for some little distance up-stream, and then made straight for my little island. Evidently they had thought there was something suspicious about my hat. Only my mouth, eyes, nose, and my revolver-hand were above water now, and I waited for them to come on.