Tom waited for a reply from the radio, but only the hissing and crackling of electrical disturbances answered him.
«Jason, those cities hold what’s left of a worldwide civilization. We can’t begin to rebuild unless we reopen that knowledge. We need it, we need it desperately!»
«It’s either destroyed or radioactive, and to think anything else is self-delusion. Besides, we have enough intelligence right here at the settlement to build a new civilization, better than the old one, once the satellite is ready.»
«But you don’t!» Tom shouted. «You poor damned fool, you don’t even realize how much you don’t know.»
«This is a waste of time,» Jason snapped. «Get outside and finish your work.»
«I’m still cold, dammit,» Tom said. He glanced at the thermometer on the control console. «Jason! It’s below freezing in here!»
«What?»
«The heating unit isn’t working at all!»
«Impossible. You must have turned it off instead of on.»
«I can read, dammit! It’s turned as high as it’ll go.»
«What’s the internal thermometer reading?»
Tom looked. «Barely thirty … and it’s still going down.»
«Hold on, I’ll wake Arnoldsson and the electrical engineers.»
Silence. Tom stared at the inanimate radio, which gave off only the whines and scratches of lightning and sun and stars, all far distant from him. For all his senses could tell him, he was the last living thing in the universe.
Sure, call a conference, Tom thought. How much more work is there to be done? About twenty-four hours, he said. Another day. And another full night. Another night, this time with no heat. And maybe no oxygen, either. The heaters must have been working tonight until I pushed them up to full power. Something must have blown out. Maybe it’s just a broken wire. I could fix that if they tell me how. But if it’s not … no heat tomorrow night, no heat at all.
Then Arnoldsson’s voice floated up through the radio speaker: soft, friendly, calm, soothing.
The next thing Tom knew he was putting on his helmet. Sunlight was lancing through the tinted observation port and the ship was noticeably warmer.
«What happened?» he mumbled through the dissolving haze of hypnosis.
«It’s all right, Tom.» Ruth’s voice. «Dr. Arnoldsson put you under and had you check the ship’s wiring. Now he and Jason and the engineers are figuring out what to do. They said it’s nothing to worry about … they’ll have everything figured out in a couple of hours.»
«And I’m to work on the satellite until they’re ready?»
«Yes.»
«Don’t call us, we’ll call you.»
«What?»
«Nothing.»
«It’s all right, Tom. Don’t worry.»
«Sure, Ruth, I’m not worried.» That makes us both liars.
He worked mechanically, handling the unfamiliar machinery with the engineers’ knowledge through Arnoldsson’s hypnotic communication.
Just like the pictures they used to show of nuclear engineers handling radioactive materials with remotely-controlled mechanical hands from behind a concrete wall. I’m only a pair of hands, a couple of opposed thumbs, a fortunate mutation of a self-conscious simian … but, God, why don’t they call? She said it wasn’t anything big. Just the wiring, probably. Then why don’t they call?
He tried to work without thinking about anything, but he couldn’t force his mind into stillness.
Even if I can fix the heaters, even if I don’t freeze to death, I might run out of oxygen. And how am I going to land the ship? The takeoff was automatic, but even Jason and Arnoldsson can’t make a pilot out of me.
«Tom?» Jason’s voice.
«Yes!» He jerked to attention and floated free of the satellite.
«We’ve … eh, checked what you told us about the ship’s electrical system while Arnoldsson had you under the hypnotic trance.»
«And?»
«Well … it, eh, looks as though one of the batteries gave out. The batteries feed all the ship’s lights, heat, and electrical power … with one of them out, you don’t have enough power to run the heaters.»
«There’s no way to fix it?»
«Not unless you cut out something else. And you need everything else … the radio, the controls, the oxygen pumps …»
«What about the lights? I don’t need them, I’ve got the lamp on my suit helmet.»
«They don’t take as much power as the heaters do. It wouldn’t help at all.»
Tom twisted weightlessly and stared back at Earth. «Well, just what the hell am I supposed to do?»
«Don’t get excited,» Jason’s voice grated in his earphones. «We’ve calculated it all out. According to our figures, your suit will store enough heat during the day to last the night …»
«I nearly froze to death last night and the ship was heated most of the time!»
«It will get cold,» Jason’s voice answered calmly, «but you should be able to make it. Your own body warmth will be stored by the suit’s insulation, and that will help somewhat. But you must not open the suit all night, not even to take off your helmet.»
«And the oxygen?»
«You can take all the replacement cylinders from the ship and keep them at the satellite. The time you save by not having to go back and forth to the ship for fresh oxygen will give you about an hour’s extra margin. You should be able to make it.»
Tom nodded. «And of course I’m expected to work on the satellite right through the night.»
«It will help you keep your mind off the cold. If we see that you’re not going to make it—either because of the cold or the oxygen—we’ll warn you and you can return to the settlement.»
«Suppose I have enough oxygen to just finish the satellite, but if I do, I won’t have enough to fly home. Will you warn me then?»
«Don’t be dramatic.»
«Go to hell.»
«Dr. Arnoldsson said he could put you under,» Jason continued unemotionally, «but he thinks you might freeze once your conscious mind went asleep.»
«You’ve figured out all the details,» Tom muttered. «All I have to do is put your damned satellite together without freezing to death and then fly 22,300 miles back home before my air runs out. Simple.»
He glanced at the sun, still glaring bright even through his tinted visor. It was nearly on the edge of the Earth-disk.
«All right,» Tom said, «I’m going into the ship now for some pills; it’s nearly sunset.»
Cold. Dark and so cold that numbers lost their meaning. Paralyzing cold, seeping in through the suit while you worked, crawling up your limbs until you could hardly move. The whole universe hung up in the sky and looked down on the small cold figure of a man struggling blindly with machinery he could not understand.
Dark. Dark and cold.
Ruth stayed on the radio as long as Jason would allow her, talking to Tom, keeping the link with life and warmth. But finally Jason took over, and the radio went silent.
So don’t talk, Tom growled silently, I can keep warm just by hating you, Jason.
He worked through the frigid night, struggling ant-like with huge pieces of equipment. Slowly he assembled the big parabolic mirror, the sighting mechanism and the atomic convertor. With dreamy motions he started connecting the intricate wiring systems.
And all the while he raged at himself: Why? Why did it have to be this way? Why me? Why did I agree to do this? I knew I’d never live through it. Why did I do it?
He retraced the days of his life: the preparations for the flight, the arguments with Jason over exploring the cities, his trek from Chicago to the settlement, the aimless years after the radiation death of his two boys and Marjorie, his wife.