The roof bothered Tul-Ab a great deal. If he had had reeds and marsh grass, he would have known what to do, but he could find none. With his men he went farther up the hillside and cut down many of the short stunted trees, and these they laid side by side across the walls of the house to make a roof. There were spaces between these logs, through which rain would come, so they cut sods of earth from the grassy surface of the plateau, and covered the roof with a thick layer of them, with flat stones on top to hold the sods in place. When the house was done, Tul-Ab took it for his home, for he was the chief, and he also took one of the women for his wife. When the first stone house had been built, the little tribe built others, until there was room for all to sleep protected from the rain. Not knowing what wild animals, or even men, might live in the woods further back from the shore, they also built a stone wall across the neck of the plateau, so that on one side their camp was protected by the cliffs leading down to the ocean, and on the other, by this wall of stone. They brought great piles of firewood into the camp for cooking the fish they caught, and the waterfowl they shot with bows and arrows, along the shores of the little bay at the foot of the cliffs. Every day the men went out hunting and fishing in the canoe, sometimes on the ocean, when it was smooth, and at others, on the bay, or up the river which ran into it. They could not go up this river very far, because of the rocks in it, which made rapids, over which the boat could not pass. But they often went beyond the rapids on foot, and brought back wild hogs, and many small furry animals they had never seen before, and sometimes bears and horned deer. Having no marsh grass from which to weave cloth, the tribe began once more to use skins and furs for clothing, and to eat more meat, and less fish, than they had eaten in their old home. The country of the sea people had been flat and marshy, while that of the valley tribes was hilly and far from the sea, but in the new home of Tul-Ab and his tribe, they found both the hills and the sea, close together, and so they grew to be like both the sea folk, and the people of the valley and the hills from which they had first come. Already, in building things of stone, they had done something that men had never done before. Instead of living in caves, or brush huts, they had built houses of stone, and a stone fort. This was a new thing, and from it they began to learn to be carpenters. As the tribe got larger, and more houses were built, they found they could make the roof logs fit closer together by chipping off the two sides of them, and so they made the first hewn timbers. It was not long, before they found they could split the logs with stone wedges, and in this way make rough planks, or boards. These boards they fastened to cross pieces with wooden pegs, to make doors for their houses to keep out the wind and snow and rain.