When he awoke Shelby spent many minutes staring at his fellow prisoner. There were indications that his consciousness was returning for he stirred frequently. Presently he who had been the Earthman's and the mysterious one's jailer in the hut the night before, came, bearing a bowl filled with a purplish radio-active liquid which served the Space Men as food. He also carried a hypodermic syringe and a small glass container partially filled with a clear fluid. These last two articles he placed upon the table, while he carried the bowl over to his charge. He shook the lacerated and bejeweled Space Man roughly and when he had aroused him to a sluggish half-consciousness, held the bowl of liquid food to his lips. Mechanically the prisoner drank. Shelby looked at the tiny vial on the table and then at the back of the jailer. Close beside the vial stood a glass partially filled with water. The Earthman had drawn a drink from the tap shortly before going to bed, and had left the tumbler standing there. The idea that had now entered his head had no real purpose. He recognized it as no more than a practical joke, plain and simple; but the idea was clamoring for attention. He would pour out the drug, which was almost certainly meant to keep the giant captive senseless, and replace it with harmless water. The jailer would not see for he was very busy. A little noise, the rattling of the chain or the tinkling of the glass as it was set down, would not matter, for though the Space Men may have possessed a very delicate touch sense capable of detecting faint vibrations in solid objects about them, Shelby knew by now that they had no real organs of hearing. And so, quickly the deed was done, and quickly he returned to his bed feigning sleep. It was a long time after the jailer had departed before Shelby's trick bore fruit. The huge prisoner rose to a sitting posture and looked about, a trifle dazedly at first. He surveyed his wounds, felt over himself tentatively, and then glanced at Shelby. The Earthman saw that the fogginess was clearing from his big eyes. There was a questioning expression in them. Shelby thought that there was a slight chance that the colossus might be able to read his lips even though he could not hear. "Who are you?" he questioned in Pagari. Apparently the creature understood, for immediately he turned, and with his forefinger slowly traced out on the wall behind him in the planetary symbols: "Friend of enemies of Black Emperor and of Man from Fourth World." Shelby was taken aback by the Space Man's startling knowledge of things of which he should know nothing. "That makes me your friend," he wrote, smiling. The giant nodded, and for almost a minute stared fixedly at the Earthman. There was a strange appeal in his eyes. Finally he turned, and laboriously he traced a quaintly worded message on the wall: "Think hard to know what I go say," he wrote.