A figure leaped from the roof of the hospital. It was Sam Quart, attempting a desperate flight. He sailed out into space, arms and legs flailing, trying to reach the up-thrusting anti-gray beam of the nearest pit which might catch him in midflight and cushion his fall. His aim was perfect. Seventy feet above ground he dropped squarely into the shaft of the beam. It was not in operation. He fell and was smashed on the edge of the pit.