Only the arms were clearly sculptured, and each of the half-dozen figures squatting upon its haunches in that semi-circle had four of them. Arms that protruded so as to form an interlacing network, and the fingers were long claws fashioned of some metal. Over the arms the shapeless heads beat down with a leering look, and from each mouth protruded a curved tongue. A masterpiece of horror, that group, like the great stone figures of the Aztecs, or some of the hideous Indian gods. Seen under the glare of the Eye, they formed a background of horrible omen. In a flash it dawned upon Jim that these hideous figures might be gods of bloody sacrifice. "That's why these people seem so gentle," he heard himself saying. "It's the--the contrast." He pulled himself together. Again he tried to move towards Lucille, and again that invisible force restrained him. Yes, it was the captured Atom Smasher upon the platform, and those forms grouped in front of the dignitaries were captured Drilgoes, a dozen or so of them. And the concealed priest was droning a chant again. Every other sound was hushed, but from each square foot of the great amphitheatre a pair of eyes was watching. A myriad of eyes turned upon the platform! What was going to happen next? * * * * * Suddenly the priest's voice died away, and simultaneously the three dignitaries, who seemed to be officiating priests, from their solemn gestures, stepped backward, passing beneath the protruding arms of the idols. There sounded the deep whir of some mechanism somewhere, and the same invisible force that had Jim and his two companions in its control suddenly began to agitate the captive Drilgoes. _It was shuffling them!_ It was forcing them into line, pushing here and pulling there, in spite of the Drilgoes' terrified struggles. They writhed and twisted, groaning and clicking in abject terror as they wrestled with that unseen power, and all in vain. Slowly the foremost of the Drilgoes was propelled forward, inch by inch, until he stood immediately beneath the interlacing arms. And what happened next filled Jim with sick horror and loathing. For of a sudden the arms began to move, the iron claws cut through the air--a shriek of terror and anguish broke from the Drilgo's mouth ... and he was no longer a man, but a clawed and pulped mass of human flesh! "Aiah! Aiah! Aiah!" broke from the throats of the assembled multitude. The weaving arms had stopped. From behind them an attendant was gathering up what had been the Drilgo in a basket. Then the mechanism had begun again, and again that shrill cry of the spectators was ringing in Jim's ears. Louder still rose the shriek of old Parrish as he understood. Jim put forth all his strength in a mad effort to break free. A child would have had more chance in the grip of a giant. And each time the arms of the gods revolved, the unseen force pushed Jim, Lucille, and Parrish nearer the platform.