Again their voices rang down the bed of the old river, this time defiantly. And the Echoes replied once more, challenging them. The Cave People grew angry and the search was continued, but they found no one. And they were compelled to return to their caves in the Hollow with hearts heavy with wrath against the Hairy Folk. Often they returned to the great canyon, bearing their bone weapons. There they remained long in hiding, awaiting the advent of the enemy, till at last they learned no one was there. Then the mystery grew more strange, for no man could tell whence came the voices that replied to them. But there came a time when the Cave People believed that these cries were the voices of the spirits that came to hunt with them, in their dream journeyings. No longer were they afraid. Only a great awe filled them and much wonder concerning these things. [Illustration] [Illustration] [Illustration] VI THE FLOOD Early in the spring the snows began to melt on the mountain tops, many miles above the Hollow, and to run down into little streams that lost themselves in the great river. Day by day the waters of the river arose along its banks. The Cave People gave little heed, for they had much to do at this time, to satisfy their hunger. Only the Old Woman bent her eyes on the whirling waters with fear and dread in her heart. Long before the memory of the other members of the tribe, she recalled a time when the waters had clambered over the river banks and spread many a day’s journey into the deep forests. Many of her brothers and her sisters had been swallowed up by the angry waters. The members of her tribe had been scattered and joined new tribes. Since those days, she had always feared the river, when it rose in the spring. When she warned the Cave People, one and all, they listened to her words, but they knew not what to do. And always the river rose higher and higher and its current grew more swift, tearing away the young saplings that grew low down, and bearing them swiftly away. But the Cave People had need of great skill these days to satisfy the hunger of the tribe. A new activity seemed born unto them. Eyes grew keen for the tracks of the wild boar and their ears were open for a sound of the foot of the forest enemies. Sharp eyes everywhere pierced the woods and glanced from the branches of trees, for man and beast had need to be ever alert and watchful to survive the dreary period of the hard seasons. The black bear appeared, thin and dangerous. But the Cave People eluded and outwitted her. Across yawning cracks in the ground or over great hollows, they threw branches of trees. And upon these branches they threw dead fish and smeared the blood of the wild duck.