It was not until they were starting home that they found that a serious thing had happened. They did not know all about it then, and some of them never knew. It was all about Fleetfoot. When Eagle-eye looked for him, he was nowhere to be seen. At first she thought he was with Chew-chew, but Chew-chew had not seen him since morn. Fleetfoot had played near his mother nearly all day. He had cracked nuts; he had climbed trees; he had mimicked the squirrels; he had scattered burrs in the rabbits' paths, and he had done all sorts of things. But now Fleetfoot was lost, and everybody began to hunt for him. Eagle-eye found the stones he had left only a short time before. She found his tracks and followed them until they crossed the boundary of the hunting ground. There she lost all trace of him. She called, but the "caw-caw" of a crow was the only answer. The men heard her call, and came to join in the search. But in spite of all they could do, they did not find the child. And so the Cave-men thought they would never see Fleetfoot again. They thought he had lost his way in the forest and had been killed by a cave-bear. For a few days they mourned for the child, then they spoke no more of him. #THINGS TO DO# _Tell a story of what happened one time when you went nutting._ _Name all the nuts you can that grow on trees. Name those that grow on bushes. Where do peanuts grow?_ _Dramatize this story._ _Draw a picture of the part you like the best._ XII THINGS TO THINK ABOUT Why do people put up such signs as "Keep off," "Do not trespass"? Why do people build fences around their land? Do you think the Cave-men could hunt wherever they chose? Why did each clan have its own hunting ground? What kind of boundaries did the hunting grounds have? Why was it not safe to go on the land of a stranger? Why did mothers teach their children the boundary lines? What do you think some mothers mean when they tell their children that the "Bogie-man" will get them? _Why Mothers Taught their Children the Boundary Lines_ Each day brought so many hard things to do that most of the Cave-men forgot Fleetfoot. But his mother and grandmother did not forget him. They often thought of the boy they had lost. Other mothers were afraid they might lose their children. So they tried to keep them from running away. Most of all, they tried to keep them from running across the boundary line. When Pigeon tried to run away, Eagle-eye would say, "The cave-bear will get you." Mothers tried all sorts of ways to keep their children from danger.