"It is not a time for sleep," said Roka gravely. "While Manitou has given us the fire to serve as a wall around us, he tells us also that we must watch every minute of the night with the bows and arrows always in our hands, or we die." "Aye," said Pehansan, "there is one that comes too near now!" He sent an arrow slithering at a bulky figure dimly outlined not more than ten yards away. At so short a distance a Sioux could shoot an arrow with tremendous force, and there followed at once a roar of pain, a rush of heavy feet, and a wild threshing among the bushes. "I know not what beast it was," said Pehansan proudly, "but like the other it will soon find a grave in the stomachs of the great wolves." They did not see any more figures for an hour or two, but a dreadful howling came from the great beasts, from every point in the complete circle about them. The three watched closely, eager to speed more arrows, but evidently the carnivora had taken temporary alarm and would not come too near lest the flying death reach them again. Roka cut fresh pieces from the buffalo and roasted them over one of the fires. "Eat," he said to his comrades. "It is as wearing to watch and wait as it is to march and fight. Eat, even if you are not hungry, that your strength may be preserved." Will, who at any other time would have found the meat of the bull too tough before pounding, ate, and he ate, too, with an appetite, Roka and Pehansan joining with vigor. The odor of the cooking steak penetrated the darkness about them and they heard the fierce growling of bears and the screaming of great cats. Will was growing so much used to these terrible noises, he felt so much confidence in their ring of fire that he laughed, and his laugh had a light trace of mockery. "Wouldn't they be glad to get at us?" he said, "and wouldn't they like to sink their teeth in the giant bull here? Why, there's enough of him to feed a whole gang of 'em!" "But he'll feed our people down in the village," said Pehansan, who was also in good spirits. "Still the wild beasts are coming nearer. It is great luck that we have so much wood for the fires." He and Will built the fires higher, while Roka sent two or three arrows at the green or yellow eyes in the dark. The roars or fierce yells showed that he had hit, and they heard the sound of heavy bodies being threshed about in the dusk. "We are not eaten but some of our enemies are," said Will. "It would be a good plan, wouldn't it, to slay them whenever we can in order that they may be food for one another?" "It is wisely spoken," said Roka. "We will shoot whenever we see a target, but we will never neglect the fires because they are more important even than the arrows."