"When they lived, those records say, travel in Space beyond the speed of light had not been accomplished; they believed such a feat an impossibility imposed by a condescending Nature that could be challenged too far. And they therefore knew no way of reaching beyond the planets of Ihelos and Thrayx for the food and resources that became so sorely depleted as both planets became, at length, stripped nearly bare as their populations swelled beyond saturation point. "Medical science had permitted the old to grow older; granted the new-born an almost certain purchase on life once first breath had been drawn. Yet its greatest offering was rejected by the people; there were indignant cries at the merest suggestion that they intelligently regulate their number, so that their posterity might live in greater plenty than had they. "There was but one solution for our desperate leaders. For although warfare had long since vanished from our civilization as it had matured, it took with it Nature's own unpleasant balance for her overgenerous fecundity. "The new balance, then, had to be of Man's making. And so it was made. "Our leaders, our Saints, as we have come through the years to know them, were of course adept masters at the many subtle arts of propaganda, and they used those arts to the very limits of their skill. They deliberately fomented, as their ancient record shows, the wars, small at first and then ever larger, between Ihelos and Thrayx. "They could not have foreseen that one day there would be conflict for existence between the sexes; logically calculating intellect against intuitive, wily cunning in a battle to determine the most fit, who would then enjoy the right to survive. "Nor could they have foreseen that one day, because of the very conflict they fomented, the science of controlled genetics would at last be recognized as a necessity of survival to both factions. "Today we have our answer to the age old problem of keeping our consumption within the limits of our ability to produce for it; we have used it to survive. But to survive war, not peace. "And that, as you apparently suspected, Earthman, is the key. "We know now why we fought. And with the knowledge of the life forces with which we insured our continued existence during our years of battle, we may now become united worlds of peace again. For we shall use that knowledge to take more advisedly of Nature's fruits than we took before. "Well done, Earthmen. And with our thanks, know that we shall be always in your debt." Then Yhevvak bowed low, and left just the three of them together in the white hospital bay of his flagship. Kriijorl was smiling, and there was a shininess in Judith's eyes. Mason grinned. "I hope those Thrayxite babes get a wiggle on," he said. "Those Earth gals gotta get 'em home! Their mothers'll be frantic. Hey, girl, not in front of company!" * * * * *