A warning, but it was too late! Behind them as they knelt there was a footstep. They turned. Togaro--as large as Ahlma--leaped at them! * * * * * Drake, down there in the caverns with the small figures of Dianne and me watching, fought with Togaro. He was aware of the shrinking walls. He heard and understood our tiny screams of warning. He scrambled up through the roof opening after Togaro. The space overhead was a caldron depression. They fought there. Togaro had been the first to take the drug. He was rapidly becoming larger than Drake. His strength was overpowering. They rolled together. Drake felt the big hands gripping his throat. He tried to tear them loose, but could not. It stopped his breath. He tried to heave his adversary off. But Togaro was too large. Too strong. The lunge jammed them both against a wall which almost wedged them. It must have brought realization to Togaro. He suddenly cast Drake loose. Drake's senses had almost faded; but with returning breath he strengthened. The walls were closing. Togaro scrambled out. Drake tried to stand up. His head and shoulders came above the closing caldron. He jumped; and as he scrambled out Togaro's fist caught him in the face. He fell; and though he did not quite lose consciousness he lay motionless. Togaro struck him again. Beat him, kicked him. Drake had just the wits left to pretend insensibility. This partly open space was again closing. A ravine in the corrugations of the upper surface. Togaro's attention was again distracted by the narrowing space. He evidently thought his adversary dead; or unconscious so that he would lie here and be crushed by his own growth. He left Drake. He leaped away, scrambled up and ran. For a moment Drake lay quiet. He stayed as long as he dared. Then he tried to sit up. He had barely the strength to pull himself out as the ravine narrowed to a slit beneath him. He fell prone. Togaro had disappeared. Drake lay amid the tumbled ridges of the upper surface. The ridges crawled and crept under him as his body grew. He was far enough out so that his body pushed itself over the surface undulations with its own growth. He fainted. When he recovered consciousness--it must have been five minutes or so--he could distinguish the outlines of the giant room. He heard the rumble of father and Ahlma talking--their voices booming far up there in the radiance of the lamplight. He was still growing. Togaro had escaped being seen by father and the girl. He had run to another corner of the room; stood quietly behind them, growing to their size. Drake saw the monstrous forms of Father and Ahlma come forward. He lay on his side. They loomed over him--tremendous giants peering down with great faces far overhead. And behind them--almost equally gigantic--he suddenly saw Togaro!