Of this marriage, twin boys were born whose strange adventures you shall hear. [Illustration: _The twin sons of Kai._] The daughter of Pesh-li-kai brought up her sons in the cliff dwelling. Their father, Hah-Tse-Yalti, had returned to the country of the gods. Because the twins were fatherless, or seemingly so, all the villagers were kind to them. The war chief of the village, who was a nephew of Pesh-li-kai, taught them the use of the bow and arrow; the peace chief of the tribe taught them the Indian lore of animals. Their mother Kai taught them the ancient prayer to the gods and to the new day which the Navahos still say when the sun comes over the mountains. [Illustration: _The twins learned the use of bow and arrow._] They hunted, they fished in the river, they swam and thrashed about in the pools. [Illustration: _They swam and thrashed about in the pools._] Every summer buffalo hunters left the village to go buffalo hunting on the plains, and before they went, the men and boys of the village danced the buffalo dance. In the year that the boys were ten years old, the dance took place at night. As the houses of the town were built against the back wall and the sides of the open hollow, there was a fine open space in front under the overhanging arch, and there the Indians built a great fire. The pine branches crackled and burnt fiercely, the yellow flames leaped at the roof, darkening the soot-smudge already there, and a fragrant smoke full of red sparks curled out the arch and poured up into the sky. Then drums began to sound, stately drums, and the older men of the village came out beating the drums and singing the deep-voiced buffalo song. Then came the younger men, the dancers, climbing one by one from their council-chamber underground. The dancers wore moccasins of hide and turquoise beadwork trimmed with the black and white of skunk fur, their lean, strong legs were washed over with reddish brown paint, a broad band of white cloth encircled them from the waist to just above the knees, and their bare upper bodies and arms were painted like their legs. They wore turquoise and silver necklaces, and round their foreheads, bands of brilliant cloth. Ten of the dancers were supposed to be buffaloes. You could not see their human heads at all, for they were hidden in real buffalo heads with hollow wooden frames. These dancers looked just like buffaloes with painted human bodies. Two little buffalo calves followed behind the grown-up dancers. When the older buffaloes pretended to be real buffaloes, and looked about and at the ground as if they were looking for grass, the two buffalo calves did the same thing. [Illustration: _The buffaloes and the buffalo calves...._]