Charalas shook his head and then smiled. He led Guy to the next panel, and there was a portrait of an elderly man, quite a bit older than Charalas though the neuro-surgeon was no young man. "Timalas," said Charalas proudly. "He gave us the next panel." The following panel was a similar scene to the dismal one, but now the same trees and buildings and hills and sky were illuminated by a sun. It was a cheerful, uplifting scene compared to the soul-clouding darkness. * * * * * Ertene was a small sphere encircled by a band of peaceful black in a raving sky of fire and flame. Three planets fought in the death throes, using every conceivable weapon. Space was riven with blasting beams of energy and segregated into square areas by far-flung cutting planes. Raging energy consumed spots on each of the planets and the corners of the panel were tangled masses of broken machinery and burning wreckage, and the hapless images of trapped men. But Ertene passed through this holocaust unseen because of Timalas' light-shield. "He saved us that, too," said Charalas reverently. "We could not have hoped to survive in this. Our science was not up to theirs, though the aid of a derelict or two gave us most of their science of war. I doubt that Terra herself could have survived. We passed unseen, though we worried for a hundred years lest they find us." A race of spiders overran four of the planets of the next panel. They were unintelligent, there was a questioning air to the panel, as though posing the query as to how this race of spiders had crossed the void. And the picture of an Ertinian dying because contact with one of the spiders indicated their reason for not remaining. The next panel showed a whole system with ammoniated atmosphere. "It was before the last panel," said Charalas, "that Ertene became of age as far as the wanderlust went. We knew that we could survive. We wanted no system wherein Ertene would be alone. Of what use to civilization would a culture be if its people could never leave the home planet?" "No," agreed Guy. "Once a race has conquered space, they must use it. It would restrict the knowledge of a race not to use space." "So we decided never to accept a system wherein we could not travel freely to other planets. Who knows, but the pathway to the planets may be but the first, faltering step to the stars?" "We'd never have reached the planets if we'd never flown on the air," agreed Guy.