Suddenly I remembered that I had a tin box of wax-vestas in my pocket. Striking one of them, I was able at last to form some opinion of this place into which I had fallen. There could be no question as to its nature. It was a trap⁠—made by the hand of man. The post in the center, some nine feet long, was sharpened at the upper end, and was black with the stale blood of the creatures who had been impaled upon it. The remains scattered about were fragments of the victims, which had been cut away in order to clear the stake for the next who might blunder in. I remembered that Challenger had declared that man could not exist upon the plateau, since with his feeble weapons he could not hold his own against the monsters who roamed over it. But now it was clear enough how it could be done. In their narrow-mouthed caves the natives, whoever they might be, had refuges into which the huge saurians could not penetrate, while with their developed brains they were capable of setting such traps, covered with branches, across the paths which marked the run of the animals as would destroy them in spite of all their strength and activity. Man was always the master.