When Jean had entirely disappeared down the side of the ravine, Jack stopped to gaze sadly at her morning's work. "I am afraid I am not a natural-born artist," she declared aloud. "It may be all right for geniuses to work from life, but I can't make any headway without a teacher. I wish Cousin Ruth had not put French and drawing into her list of what a young woman should know. They may be easy enough for girls to learn in her beloved old Vermont, but they are pretty hard work out here. I am afraid the ranch girls don't know any of the things they should." Jack's red lips parted. "But it's lots of fun to know the unnecessary things like fishing and riding. Gee whiz, I can't stand working any longer." Jack leaned over the ledge of rock. Her drawing fluttered down to her sister. "Here Frieda, decorate your cave with that work of art. It looks like a drawing made by the Indians in pre-historic days. You won't mind, will you, if I go away for a while? I won't be out of calling distance and I won't stay long. If you need me, just sing out." Frieda smiled. Her blue eyes looked like a reflection of the clear sky above them. She had so little idea of feeling any fear, that she did not even trouble to answer Jack's question. There were no more wild animals in the gorge. Besides, the ranch girls knew that few animals would attack them, except in self-defense. Frieda climbed down the rocky cliff to fill an old teakettle with water from a spring not far below and then hung it over the fire on a crooked stick. If the water boiled long before Jean and Jack returned, the pleasant, sizzly sound would keep her company. Frieda's house was in order, so she set out her luncheon dishes, arranging them around in a circle on the floor of her cave. In the center, in a broken teacup, she placed the bunch of violets she had worn in her trip across the plain. Still the girls had not returned; Frieda might have studied, but she decided that it would be more fun to enlarge the crevice in the rocks, which formed the storehouse for her kitchen and dining-room utensils. She struck the rock sharply with a large stone. A piece chipped off, then another. It was red sandstone and not very hard and Frieda was banging away with all her might, when she gave a quick exclamation of surprise. A great crack appeared along one side of the stone wall, and a big boulder crashed down at Frieda's feet. Before her, she beheld another cavern in the rock, almost as large as the one in which she played. The little girl jumped back. At any moment she expected to see a pair of wild eyes glaring at her from the rocky retreat, believing that she had accidentally broken into the cave of some animal. But nothing happened; there was no stir, no sound from the darkness inside.