THEY RAN THROUGH THE groves of dead trees, leaping across the sun-baked Martian soil, running silently together. They went up a little rise, across a narrow ridge. Suddenly Erick stopped, throwing himself down flat on the ground. The others did the same, pressing themselves against the soil, gasping for breath. “Be silent,” Erick muttered. He raised himself a little. “No noise. There’ll be Leiters nearby, from now on. We don’t dare take any chances.” Between the three people lying in the grove of dead trees and the City was a barren, level waste of desert, over a mile of blasted sand. No trees or bushes marred the smooth, parched surface. Only an occasional wind, a dry wind eddying and twisting, blew the sand up into little rills. A faint odor came to them, a bitter smell of heat and san

