"You don't. But I said it's insulting. So, if you want to see the coin, you'll have to fight me!" "Never mind," said Barling, climbing into his vac-suit. "You get first try." And all of them garbed in their vac-suits once more, the men of the _Frank Buck_ departed. "Get those beaters out again!" Teejay was calling into her microphone, and Kevin grasped Steve's arm, said: "Go ahead, boy. Look at the coin." Steve did. It had two heads. And later, Teejay said to him: "Listen, Stedman. All the beaters are out now, but frankly, I don't trust Schuyler." Steve said he did not blame her, and Kevin was there to nod his red head. "So, Stedman, the beaters have their jobs to do. That's almost everyone. But temporarily at least, it leaves you and Mac here with nothing to do." "That's true," said Kevin. "But not for long, Mac. Schuyler may try something, I don't know what. You two are probably the strongest men on this ship. I know what you can do, Mac--and I saw a sample of Stedman at work when he had that little run-in with LeClarc. All right: you two hop into a couple of vac-suits. That is, if Stedman's ready to fight for us if he has to--" Steve chuckled. "I don't go around carrying two-headed coins, Teejay, but I know a rat when I see one. I'll go, and your friend Schuyler better not try anything." Almost, he was surprised at his own words. Teejay had a way of commanding respect, and if he didn't watch himself, he'd be talking like Kevin soon. Well, perhaps the woman merited it.... His thoughts took him that far, and then he remembered Charlie. "I'll go," he said again, almost growling. "But you still have a chip on your shoulder--well, never mind. I'll expect quarter-hourly reports from you two." "You'll get them," said Kevin, and climbed into his vac-suit. * * * * * Incredibly, Steve found himself out on the bleak, desolate surface of Ganymede, walking with Kevin past the long, silent length of the _Frank Buck_. And here, outside the confining walls of their spaceship, the Ganymede-fear seemed stronger. Steve felt it as something palpable, clutching at his heart and constricting it, bringing sweat to his forehead and clouding the inside of his helmet with moisture. Fear--of what? Not of the frontier world itself, surely. Not of some unknown menace lurking out among the craterlets and ringwalls. No, for while Ganymede was not yet as familiar as Mars or Venus, mankind still had explored it extensively. There were the strange anthrovacs, animals which looked like over-sized and less brutish gorillas but which were not protoplasm creatures and which took their energy directly from sunlight and cosmic radiation. But that was all--no other life existed on Ganymede, and the anthrovacs on their frigid, airless world were something of an oddity. Then what caused the fear? And was the fear responsible in any way for what had happened to Charlie?