Soon, however, the pursuing head emerged from the thick trees. The children got up and ran as hard as they could, but close behind them came the severed head, rolling its eyes and gnashing its teeth in a great frenzy, and uttering terrible yells. It was very near to them, when the children again remembered their father's gifts. They threw the white stones behind them, and at once a high mountain of white rock rose between them and their enemy. They sat on the ground and rested, and said, "Oh dear, oh dear, what shall we do? We have only one means of safety left, these little bits of moss." The wicked head hurled itself against the mountain, but it could not get through. A big buffalo bull was feeding on the grass near it, and the head called to him to break a road through the mountain. The bull rushed at the mountain with all his force, but the mountain was so hard that it broke his head and he fell down dead. Some moles were playing in the soft earth near by, and the head called to them to make a passage through the hill. So the moles searched and found a soft earthy place in the midst of the rock and soon they tunnelled a hole to the other side of the mountain, through which the head was able to pass. When the children saw their pursuer coming out of the moles' tunnel they cried loudly and ran away as fast as they could. At last, after a very long chase, the head was almost upon them, and they decided to use their last means of protection. They threw the wet moss behind them, and at once a long black swamp appeared where the moss had fallen, between them and their wicked follower. The head was going at such a great speed, bumping over the ground, that it could not stop. It rolled into the swamp and disappeared into the soft mud and was never seen again. [Illustration: THE BULL RUSHED AT THE MOUNTAIN WITH ALL HIS FORCE]