hole has been made. Dirt can be patted down. Blown-up rock looks like blown-up rock, and that's all there is to it.

I considered crevices and fissures in the surface, some cranny large enough for Karpin to have stuffed the body into. But I didn't find any of these either as I plodded along, being sure to keep one magnetted boot always in contact with the ground.

Karpin and McCann had set their dome up at just about the only really level spot on that entire planetoid. The rest of it was nothing but jagged rock, and it wasn't easy traveling at all, maneuvering around with magnets on my boots and a bulky atmosphere suit cramping my movements.

And then I stopped and looked out at space and cursed myself for a ring-tailed baboon. McCann's body might be anywhere in the Solar System, anywhere at all, but there was one place I could be sure it wasn't, and that place was this asteroid. No, Karpin had not blown a grave or stuffed the body into a fissure in the ground. Why not? Because this chunk of rock was valuable, that's why not. Because Karpin was in the process of selling it to one of the major companies, and that company would come along and chop this chunk of rock to pieces, getting the valuable metal out, and McCann's body would turn up in the first week of operations if Karpin were stupid enough to bury it here.

Ten hours between McCann's death and Karpin's departure for Chemisant City. He'd admitted that already. And I was willing to bet he'd spent at least part of that time carrying McCann's body to some other asteroid, one he was sure was nothing but worthless rock. If that were true, it meant the mortal remains of Jafe McCann were now somewhere—anywhere—in the Asteroid Belt. Even if I assumed that the body had been hidden on an asteroid somewhere between here and Chemisant City—which wasn't necessarily so—that wouldn't help at all. The relative positions of planetoids in the Belt just keep on shifting. A small chunk of rock that was between here and Chemisant City a few weeks ago—it could be almost anywhere in the Belt right now.

The body, that was the main item. I'd more or less counted on finding it somehow. At the moment, I couldn't think of any other angle for attacking Karpin's story.

As I clopped morosely back to the dome, I nibbled at Karpin's story in my mind. For instance, why go to Chemisant City? It was closer, he said, but it couldn't have been closer by more than a couple of hours. The way I understood it, Karpin was well-known back on Atronics City—it was the normal base of operations for he and his partner—and he didn't know a soul at Chemisant City. Did it make sense for him to go somewhere he wasn't known after his partner's death, even if it was an hour closer? No, it made a lot more sense for a man in that situation to go where he's known, go someplace where he has friends who'll sympathize with him and help him over the shock of losing a partner of fifteen years' standing, even if going there does mean traveling an hour longer.

And there was always the cash-return form. That was what I was here about in the first place. It just didn't make sense for McCann to have held up his celebration while he filled out a form that he wouldn't be able to mail until he got back to Atronics City. And yet the company's handwriting experts were convinced that it wasn't a forgery, and I could pretty well take their word for it.

Mulling these things over as I tramped back toward the dome, I suddenly heard a distant bell ringing way back in my head. The glimmering of an idea, not an idea yet but just the hint of one. I wasn't sure where it led, or even if it led anywhere at all, but I was going to find out.

Karpin opened the doors for me. By the time I'd stripped off the suit he was back to work. He was cleaning the single unit which was his combination stove and refrigerator and sink and garbage disposal.

I looked around the dome again, and I had to admit that a lot of ingenuity had gone into the manufacture and design of this dome and its contents. The dome itself, when deflated, folded down into an oblong box three feet by one foot by one foot. The lock itself, of course, folded separately, into another box somewhat smaller than that.

As for the gear inside the dome, it was functional and collapsible, and there wasn't a single item there that wasn't needed. There were the two chairs and the two cots and the table, all of them foldaway. There was that fantastic combination job Karpin was cleaning right now, and that had dimensions of four feet by three feet by three feet. The clutter of gear over to the left wasn't as much of a clutter as it looked. There was a Geiger counter, an automatic spectrograph, two atmosphere suits, a torsion densimeter, a core-cutting drill, a few small hammers and picks, two spare air tanks, boxes of food concentrate, a paint tube, a doorless jimmy-john and two small metal boxes about eight inches cube. These last were undoubtedly Karpin's and McCann's pouches, where they kept whatever letters, money, address books or other small bits of possessions they owned. Back of this mound of gear, against the wall, stood the air reconditioner, humming quietly to itself.

In this small enclosed space there was everything a man needed to keep himself alive. Everything except human company. And if you didn't need human company, then you had everything. Just on the other side of that dome, there was a million miles of death, in a million possible ways. On this side of the dome, life was cozy, if somewhat Spartan and very hot.

I knew for sure I was going to get a head cold. My body had adjusted to the sixty-eight degrees inside the suit, finally, and now was very annoyed to find the temperature shooting up to ninety again.

Since Karpin didn't seem inclined to talk, and I would rather spend my time thinking than talking anyway, I took a hint from him and did some cleaning. I'd noticed a smeared spot about nose-level on the faceplate of my fishbowl, and now was as good a time as any to get rid of it. It had a tendency to make my eyes cross.

My shirt was sodden and wrinkled by this time anyway, having first been used to wipe sweat from my face and later been rolled into a ball and left on the chair when I went outside, so I used it for a cleaning rag, buffing like mad the silvered surface of the faceplate. Faceplates are silvered, not so the man inside can look out and no one else can look in, but in order to keep some of the more violent rays of the sun from getting through to the face.

I buffed for a while, and then I put the fishbowl on my head and looked through it. The spot was gone, so I went over and reattached it to the rest of the suit, and then settled back in my chair again and lit a cigarette.

Karpin spoke up. "Wish you wouldn't smoke. Makes it tough on the conditioner."

"Oh," I said. "Sorry." So I just sat, thinking morosely about non-forged cash-return forms, and coincidences, and likely spots to hide a body in the Asteroid Belt.

Where would one dispose of a body in the asteroids? I went back through my thinking on that topic, and I found holes big enough to drive Karpin's claim through. This idea of leaving the body on some worthless chunk of rock, for instance. If Karpin had killed his partner—and I was dead sure he had—he'd planned it carefully and he wouldn't be leaving anything to chance. Now, an asteroid isn't worthless to a prospector until that prospector has landed on it and tested it. Karpin might know that such-and-such an asteroid was nothing but worthless stone, but the guy who stops there and finds McCann's body might not know it.

No, Karpin wouldn't leave that to chance. He would get rid of that body, and he would do it in such a way that nobody would ever find it.

How? Not by leaving it on a worthless asteroid, and not by just pushing it off into space. The distance between asteroids is large, but so's the travel. McCann's body, floating