Long years of research in the sppace labs of Terra enables Science to return man to the mental and emotional prototypes of his ancestors with a full awakening of racial memory. A group of volunteers penetrates the land of Topaz where the Apaches have been enslaved by a powerful machine in the hands of the Reds. Travis and his associates become leaders of the underdog and fall at negotiation with the enemy. A master plan to usurp the mysterious treasure house in the towers is more effective and the Reds are thus rendered powerless. But the Apaches do not respond in kind. Instead they decree that both sides shall live in peace. Andre Norton, a polished writer of science fiction, weaves his outlandish fare in patterns intricate enough to attract the most devoted addict. Do not try to contrive a consistent political allegory out of his flight into fantasy. This is pure science fiction with obvious pertinent overtones.