Only it wasn't a cave at all. It was more like a tunnel--a tunnel that the ancients had driven through the mountains. Jupiter felt his heart leap into his throat. It was what he had been searching for--the mouth of one of the canals leading beneath the city by the _Dra Dur_. He turned into it, his light revealing smooth composition walls, green and slick with algae. He must have gone a mile before he found a ramp leading to the surface. As his helmet broke water, he saw that his luck was still holding. He was beneath the temple of the Radiant God. The ramp which continued on up into the temple proper was deserted. He sat down, unwrapped the needle gun, then started up the ramp like some amphibious monster of the deep. Tabak and Reiloc, he was sure, were being confined in the temple. The breeding pens more than likely, since that was where most of the human guinea pigs were confined. He didn't encounter a single Anolyn until he reached the central courtyard. The courtyard was divided into runs like a dog kennel. It was dark with a pitch-like blackness. He hastily shut the air intake valve on the spacesuit. The stench was terrible. He could hear grunts, soft voices. Someplace in the darkness a girl was crying. Jupiter was revolted to the depths of his being. When he thought of Tabak being shut up here, he could feel his blood run cold. How was he going to find her in this mess? He didn't dare use the torch and time was running out. Overhead the stars were paling. A light appeared diagonally across the courtyard. He flattened himself against the wall. * * * * * It was a torch, he saw, in the hand of a pink-skinned Caligan. A dozen grotesque Anolyn followed the torch bearer, then a company of Nehogans. Jupiter watched them make their way between the runs. His eyes suddenly narrowed. They had stopped before a cage in which he could see a girl. The door was opened, the girl dragged out, hustled toward a pen of long tailed Begans. The smoky light of the torch glared briefly on her face. Tabak! They had taken away the girl's sarong, caged her like a wild animal. Jupiter swung up the needle ray. He could see them leading Reiloc from the next cage. He yelled: "Tabak! Reiloc! To me!" and flicked on the ray gun. The disruptive beam of force touched one of the guards. There was a brief, brilliant flash. Then another and another as the ray fingered guard after guard. The yard went from light to dark to light again, freezing the action. Jupiter saw Tabak break away, sprint toward him down the corridor between the runs. Reiloc was directly behind her. The giant Nehogan had snatched a sword from one of the guards whom Jupiter had rayed down. He brandished it over his head, yelled savagely. More Nehogans poured into the courtyard, summoned telepathically by the Anolyn. Then Reiloc and Tabak were crowding beside him. "The city gates!" Jupiter barked. "We've got to reach them before dawn!"