That still left me with my own problem. I had already lost too much time, and I had to go a long way. Ceres is irregular in shape, but it's roughly four hundred and eighty miles in diameter and a little over fifteen hundred miles in circumference.

Viking Test Field Four, where McGuire 7 was pointing his nose at the sky, was about twenty-five miles away, as the crow flies. But of course I couldn't go by crow.

By using a low, fairly flat, jackrabbit jump, a man in good condition can make a twelve hundred foot leap on the surface of Ceres, and each jump takes him about thirty seconds. At that rate, you can cover twenty-five miles in less than an hour. That's what I'd intended on doing, but I couldn't do it with all this radar around the field. I wouldn't be stopped, of course, but I'd sure tip my hand to Colonel Brock—the last thing I wanted to do.

But there was no help for it. I'd have to go back down and use the corridors, which meant that I'd arrive late—after Jack Ravenhurst got there, instead of before.

There was no time to waste, so I got below as fast as possible, repacked my vac suit, and began firing myself through the corridors as fast as possible. It was illegal, of course; a collision at twenty-five miles an hour can kill quickly if the other guy is coming at you at the same velocity. There were times when I didn't dare break the law, because some guard was around, and, even if he didn't catch me, he might report in and arouse Brock's interest in a way I wouldn't like.

I finally got to a tubeway, but it stopped at every station, and it took me nearly an hour and a half to get to Viking Test Area Four.

At the main door, I considered—for all of five seconds—the idea of simply telling the guard I had to go in. But I knew that, by now, Jack was there ahead of me. No. I couldn't just bull my way in. Too crude. Too many clues.

Hell's fire and damnation! I'd have to waste more time.

I looked up at the ceiling. The surface wasn't more than a hundred feet overhead, but it felt as though it were a hundred light-years.

If I could get that guard away from that door for five seconds, all would be gravy from then on in. But how? I couldn't have the diversion connected with me. Or—