Who can know the understanding of the dog, which lost in a strange land, finds his way home again! Or the animals of the forest, how they find the old haunts through the unknown ways! And who among us can say how Run Fast understood that when the moon rose high in the heavens the raft would be nearing the bend in the river which appeared before the Hollow, wherein lay the homes of the Cave People! For the Cave People were unable to count. One, they made known by the pointing of a fore-finger upward; and two by pointing two fingers. But beyond this, they had no signs for the numbers but flung out their hands as though to say, “many.” But Run Fast knew even as his brothers would have known under similar circumstances. And when the raft curved about the bend, he paddled with his hand to steer the boat close to the shore. Very cautiously he pushed the woman on to the bank before him, for the beasts came often to the river edge to drink, but he saw no danger. Then, making fast the boat, he bore the woman of the Hairy Folk over the rocks to his cave and rolled a great stone before the entrance. And his heart was glad and his blood was warm, for he knew that no longer would he be an outcast among his own people. Two suns had come and gone again when Run Fast bent his steps toward the forest, and the old woman disappeared. Doubtless she turned her face toward the home of the small brown boy among the Hairy Folk. Run Fast was thus again made lonely, but the voices of his brothers cheered him. Always they said, “man, man,” when he appeared, for he had proven his courage and his bravery among the tribe. The young women looked tenderly at the strength of his limbs and he was become honored among his people. * * * * * [Charles Darwin says in his Descent of Man: “In utterly barbarous times the women have more power in choosing, rejecting and tempting their lovers, or of afterwards changing their husbands, than might have been expected.” He gives several illustrations. Page 620, Crowell edition.] [Illustration] [Illustration] IV LITTLE LAUGHING BOY When the luscious fruit ripened and fell and the nut season came around, the time of joy and plenty was at hand for the Cave Dwellers. Then millions of fish sought the shallows of the river; nourishing plants, with a strange bittersweet flavor, thrust up their heads, and the nests were full of eggs for the hand of him who cared to gather. It was then only that the Cave People were never hungry. With plenty abounding always in the forest, they feasted continually and grew fat against those periods of famine that spread through the long after-suns and the dreary wet seasons.