This added resistance seemed to inflame the determination of the nomads. They answered the increased fire sharply. Another incendiary ignited a wooden building a step nearer the warehouse. The defenders tried to flank the threatening column but the latter ran between a row of burning houses along an alleyway, firing additional incendiaries as they went. Then sudden flame burst against the wooden walls of the old skating rink and licked with red fury along its painted surface. In moments the warehouse was bathed on all sides in seething flame, and the nomad column spread beyond it, unaware of the mortal damage they had done. * * * * * Ken turned away. He walked slowly and decisively down the stairs. He told his father what had just happened. "I'm going out there, Dad," he said. "They're going to wipe us out, or destroy every chance we'll have to survive even if we drive them off. Half of our food supply is gone now. What chance have we got even if we kill every nomad in the valley?" Ken's father turned to a closet and drew out a .30-06. From a hook he took down a hunter's jacket. Its pockets were loaded with shells, and he had an extra box he gave to Ken. "Johnson left this here," he said. "He intended it for our use if the nomads reached this far. I think maybe it had better be used before the medical center needs defending." Ken's eyes lighted with gratefulness. "Thanks, Dad," he said. "I'm glad you're willing." "I don't know if I'm willing or not. However, I think I agree with you that there's nothing else to be done." Ken ran from the building, clutching the solid, reassuring weight of the rifle in his hand. His coat pockets and the hunting jacket were weighted heavily with the supply of ammunition. There was a feeling of security in the weapon and the shells, but he knew it was a short-lived, deceptive security. He went to Eighth Street and turned north, which would bring him close to the burned warehouse. He could see the immense, rolling column of black smoke and hear the bursting crackle of its flames. The whole town could go, he thought, if the fire became hot enough. It would spread from building to building regardless of the snow cover. He glanced at the sky and hoped the snow might soon resume. From the rooftop, it had seemed to Ken that the small units of the defenders were almost leaderless, and there was lack of co-ordination between them. He came up in their rear ranks and confirmed this suspicion. They seemed to be depending as best they could on unanimous and intuitive agreement about a course of action. What had happened to their sergeants and lieutenants, Ken did not know. Perhaps in their haste of organization there never had been any. There was top-level command, of course, as appointed by Sheriff Johnson for the entire sector, but it did not extend to the lower levels in any degree Ken could see.