everlasting ebon arch of the heavens. On one such evening Sy turned in to a farmer's dimly lit cottage, almost concealed in a stygian grove of fruit trees, and called its occupant to the door. He introduced Arna to a lean, toothless, grinning man. "This is Loor, darling, our loyal Venusian agent—our contact with young Tel and the League." Loor served them with simple wine. He showed Arna the delicate telepathic amplifier which carried his mental transmissions across the dust-voids of space, to be received by the unaided mind of a youthful Unique. Afterward, he returned the apparatus to its place of concealment beneath the floor. It was but a few days before the scheduled space trials of the fleet when Arna brought Sy disquieting news. "I overheard Rilth say he was going to investigate the ships' G mechanism," she whispered rapidly. "He seems to be suspicious of—" "Poor kid," Sy said loudly. "You can't work when you feel like that. You go on home and sleep." He added casually, "I may be late tonight—lots of work to do." He located Rilth in a great noisy hangar and piloted him away from a crowd of noisy engineers. "Filthy vermin," he said by way of greeting, "you look like you need an airing." He lowered his voice. "Let's dodge our females tonight and slice up Dirik a bit—it'd do us both good." Rilth grimaced. "It is unfortunate, gutter-born, that Ruza wants to celebrate tonight. Some miserable party or other." "You can always work late, can't you, son of cattle? We'll snag a couple of lively young peasants from one of the pleasure dens." Rilth's cold eye glittered. "Your vile mouth speaks temptingly." "I'll meet you at a sidewalk table of the Wild Snake, on the Street of Delight. We'll blast the town!" It was completely dark when the two met at the cafe. They finished a goblet of wine, and Sy suggested they move on to a place he knew. They threaded their way through jostling crowds and walked along side streets which led away from the city's riotous heart. Pedestrians became fewer. Rilth cursed Sy for not thinking to use a vehicle. "It's just around the next corner, slimehead," Sy assured him. "And I've already made arrangements." But there was a narrow, lightless alleyway a few steps