We had little time to watch them, however, for in an instant they had overtaken the fugitives and were making a dire slaughter among them. Their method was to fall forward with their full weight upon each in turn, leaving him crushed and mangled, to bound on after the others. The wretched Indians screamed with terror, but were helpless, run as they would, before the relentless purpose and horrible activity of these monstrous creatures. One after another they went down, and there were not half-a-dozen surviving by the time my companion and I could come to their help. But our aid was of little avail and only involved us in the same peril. At the range of a couple of hundred yards we emptied our magazines, firing bullet after bullet into the beasts, but with no more effect than if we were pelting them with pellets of paper. Their slow reptilian natures cared nothing for wounds, and the springs of their lives, with no special brain center but scattered throughout their spinal cords, could not be tapped by any modern weapons. The most that we could do was to check their progress by distracting their attention with the flash and roar of our guns, and so to give both the natives and ourselves time to reach the steps which led to safety. But where the conical explosive bullets of the twentieth century were of no avail, the poisoned arrows of the natives, dipped in the juice of