right. If it hadn't we'd be roasting merrily inside a twisted mass of wreckage. But I wouldn't call it happy landing. You've got a nasty cut there."

"I'm all right, Richard."

Joan reached up and patted my cheek. "Good old Richard. You're just upset because we didn't plunge into a lake of molten zinc."

"Sure, that's it," I grunted. "I was hoping for a swift, easy out."

"Maybe we'll find it, Richard," she said, her eyes suddenly serious. "I'm not kidding myself. I know what a whiff of absolute zero can do to mucous membranes. All I'm claiming is that we've as good a chance here as we would have had on Ganymede."

"I wish I could feel that way about it. How do we know the atomotors can lift us from a world as massive as Jupiter?"

"I think they can, Richard. We had twelve times as much acceleration as we needed on tap when we took off from Earth."

She was getting to her feet now. Her eyes were shining again, exultantly. You would have thought we were descending in a stratoplane above the green fields of Earth.

"I've a confession to make, Richard," she grinned. "Coming down, I was inwardly afraid we would find ourselves in a ghastly bubble and boil. And I was seriously wondering how long we could stand it."

"Oh, you were."

"Longer than you think, Richard. Did you know that human beings can stand simply terrific heat? Experimenters have stayed in rooms artificially heated to a temperature of four hundred degrees for as long as fifteen minutes without being injured in any way."

"Very interesting," I said. "But that doesn't concern us now. We've got to find out if our crewmen are injured or badly shaken up. Chances are they'll be needing splints. And we've got to check the atmosphere before we can think of going outside, even with our helmets clamped down tight.

"Chances are it's laden with poisonous gases which the activated carbon in our oxygen filters won't absorb. If the atmosphere contains phosgene we'll not be stepping out. I'm hoping we'll find only carbon monoxide and methane."

"Nice, harmless gases."

"I didn't say that. But at least they'll stick to the outside of the particles of carbon in the 

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