molecules which could only be written down as being of molecular weight. The fuel synthesizer was set up a good half-mile from the space-ship and was developing a small ice-cap of its own. But it would be a long time before there was drive fuel to refill the ship's tanks. Sattell might sabotage that. So he had to be treated as the pampered guest of those who believed implicitly in his will to murder them. All arms were safely locked away. Even the air-lock fastening had to be dismantled, so he couldn't lock everybody else out of the ship. And Borden and Ellen and Jerry went armed, and had nerve-rackingly to be on guard at all times. But it would have been ridiculous to confine Sattell so he had the status of a nonworking guest because he was a potential murderer. There was not much for Jerry to do either, except hold conferences with his admirers. On the fifth twenty-hour day after the Danaë's landing, Jerry set off with an excited mob of furry, trunk-waving friends. He carried a walkie-talkie, depending on the absence of radio waves from the planet's atmosphere to make its use safe. Two hours after he had headed north toward the ice, Borden and Ellen came back from an inspection tour of the crops and fuel synthesizer, and found that Sattell had disappeared, too. He'd taken all the food he could conveniently carry from their depressingly short supply. Borden swore bitterly. Sattell underfoot was a nuisance and a menace. But Sattell at large might be more, and worse. There was no glamor in being cast-away on this alien world, such as is shown in visi-screen plays. The Danaë was a small utility ship, suitable for small expeditions for scientific purposes, or for the staking out of private planetary estates—a common practice, these days—and the servicing of such establishments. Her eighty-foot length now rested slightly askew in the pit her landing had made. About her was arctic flora, and the thick fur of the bipeds suggested that they were arctic animals themselves. But here close to the ice-cap was the only place on this planet where a man might hope to survive. It was madness for Sattell to leave the ship. "It doesn't make sense!" Borden said. "What has he to gain? He was afraid we'd go off and maroon him. We can't do that with crops going, the synthesizer working, and the drive pulled down. So what can he gain by running off?" Ellen said uneasily, "Jerry's armed.