He paced around the control cabin, still hunting for a weapon. The symbols on the levers and buttons were meaningless to him. They made him feel frustrated because he imagined that among that countless array were some that might help him out of the trap if he could only guess their use. Once more he stood by the platform thinking. This was the point from which the ship had been sailed--in the air or on some now frozen sea. These control boards must have given the ship's master the means not only of propelling the vast bulk, but of unloading and loading cargo, lighting, heating, ventilation, and perhaps defense! Of course, every control might be dead now, but he remembered that in the lifeboat the machines had worked successfully, fulfilled expertly the duty for which they had been constructed. The only step remaining was to try his luck. Having made his decision, Ross simply shut his eyes as he had in a very short and almost forgotten childhood, turned around three times, and pointed. Then he looked to see where luck had directed him. His finger indicated a board before which there had been three seats, and he crossed to it slowly, with a sense that once he touched the controls he might inaugurate a chain of events he could not stop. The crash of a shot underlined the fact that he had no other recourse. Since the symbols meant nothing, Ross concentrated on the shapes of the various devices and chose one which vaguely resembled the type of light switch he had always known. Since it was up, he pressed it down, counting to twenty slowly as he waited for a reaction. Below the switch was an oval button marked with two wiggles and a double dot in red. Ross snapped it level with the panel, and when it did not snap back, he felt somehow encouraged. When the two levers flanking that button did not push in or move up and down, Ross pulled them out without even waiting to count off. This time he had results! A crackling of noise with a singsong rhythm, the volume of which, low at first, arose to a drone filled the cabin. Ross, deafened by the din, twisted first one lever and then the other until he had brought the sound to a less piercing howl. But he needed action, not just noise; he moved from behind the first chair to the next one. Here were five oval buttons, marked in the same vivid green as that which trimmed his clothing--two wiggles, a dot, a double bar, a pair of entwined circles, and a crosshatch. Why make a choice? Recklessness bubbled to the surface, and Ross pushed all the buttons in rapid succession. The results were, in a measure, spectacular. Out of the top of the control board rose a triangle of screen which steadied and stood firm while across it played a rippling wave of color. Meanwhile the singsong became an angry squawking as if in protest.