The storm thunder of the avalanche passed away to a trickle of sand. Sim's father burst out into laughter. "Made it! By the Gods! Made it alive!" And he looked scornfully at the cliff and spat. "Pagh!" Mother and sister Dark struggled through the rubble. She cursed her husband. "Fool! You might have killed Sim!" "I may yet," retorted the father. Sim was not listening. He was fascinated with the remains of an avalanche afront of the next tunnel. A blood stain trickled out from under a rise of boulders, soaking into the ground. There was nothing else to be seen. Someone else had lost the game. Dark ran ahead on lithe, supple feet, naked and certain. The valley air was like a wine filtered between mountains. The heaven was a restive blue; not the pale scorched atmosphere of full day, nor the bloated, bruised black-purple of night, a-riot with sickly shining stars. This was a tide pool. A place where waves of varying and violent temperatures struck, receded. Now the tide pool was quiet, cool, and its life moved abroad. Laughter! Far away, Sim heard it. Why laughter? How could any of his people find time for laughing? Perhaps later he would discover why. The valley suddenly blushed with impulsive color. Plant-life, thawing in the precipitant dawn, shoved out from most unexpected sources. It flowered as you watched. Pale green tendrils appeared on scoured rocks. Seconds later, ripe globes of fruit twitched upon the blade-tips. Father gave Sim over to mother and harvested the momentary, volatile crop, thrust scarlet, blue, yellow fruits into a fur sack which hung at his waist. Mother tugged at the moist new grasses, laid them on Sim's tongue. His senses were being honed to a fine edge. He stored knowledge thirstily. He understood love, marriage, customs, anger, pity, rage, selfishness, shadings and subtleties, realities and reflections. One thing suggested another. The sight of green plant life whirled his mind like a gyroscope, seeking balance in a world where lack of time for explanations made a mind seek and interpret on its own. The soft burden of food gave him knowledge of his system, of energy, of movement. Like a bird newly cracking its way from a shell, he was almost a unit, complete, all-knowing. Heredity had done all this for him. He grew excited with his ability. They walked,