find there's practically an asteroid belt around Jupiter, most of them so black they don't reflect light to speak of and you can't see them till they hit you or you hit them. But most of them—" "Skip the satellites," Blake interrupted, "unless they wore earrings." "Or unless earrings wore them," said Charlie. "Neither," I admitted. "All right, so we were lucky and got through the belt. And landed. Like I said, there were six of us. Lecky, the biologist. Haynes geologist and mineralogist. And Hilda Race, who loved little flowers and was a botanist, egad! You'd have loved Hilda—at a distance. Somebody must have wanted to get rid of her, and sent her on that trip. She gushed; you know the type. "And then there was Art Willis and Dick Carney. They gave Dick skipper's rating for the trip; he knew enough astrogation to get us through. So Dick was skipper and Art and I were flunkies and gunmen. Our main job was to go along with the specialists whenever they left the ship and stand guard over them against whatever dangers might pop up." "And did anything pop?" Charlie demanded. "I'm coming to that," I told him. "We found Ganymede not so bad, as places go. Gravity low, of course, but you could get around easily and keep your balance once you got used to it. And the air was breathable for a couple of hours; after that you found yourself panting like a dog. "Lot of funny animals, but none of them were very dangerous. No reptilian life; all of it mammalian, but a funny kind of mammalian if you know what I mean." Blake said, "I don't want to know what you mean. Get to the natives and the earrings." I said, "But of course with animals like that, you never know whether they're dangerous until you've been around them for a while. You can't judge by size or looks. Like if you'd never seen a snake, you'd never guess that a little coral snake was dangerous, would you? And a Martian zeezee looks for all the world like an overgrown guinea-pig. But without a gun—or with one, for that matter—I'd rather face a grizzly bear or a—" "The earrings," said Blake. "You were talking about earrings." I said, "Oh, yes; earrings. Well, the natives wore them—for now, I'll put it that way, to make it easier to tell. One earring apiece, even though they had two ears.