“Awright, let’s get some goddamn back inta that! Stringer team! Move it up — move your ass up!”

A warm front had come in about midnight and the snow had turned to sleet. The permaplast stringer weighed five hundred pounds and was a bitch to handle, even when it wasn’t covered with ice. There were four of us, two at each end, carrying the plastic girder with frozen fingertips. Rogers was my partner.

“Steel!” the guy behind me yelled, meaning that he was losing his hold. It wasn’t steel, but it was heavy enough to break your foot. Everybody let go and hopped away. It splashed slush and mud all over us.

“Goddammit, Petrov”, Rogers said, “why didn’t you go out for the Red Cross or something? This fucken thing’s not that fucken heavy.” Most of the girls were a little more circumspect in their speech. Rogers was a little butch.

“Awright, get a fucken move on, stringers — epoxy team! Dog’em! Dog’em!”

Our two epoxy people ran up, swinging their buckets. “Let’s go, Mandella. I’m freezin’ my balls off.”

“Me, too,” the girl said with more feeling than logic.

“One — two — heave!” We got the thing up again and staggered toward the bridge. It was about three-quarters completed. Looked as if the second platoon was going to beat us. I wouldn’t give a damn, but the platoon that got their bridge built first got to fly home. Four miles of muck for the rest of us, and no rest before chop.

We got the stringer in place, dropped it with a clank, and fitted the static clamps that held it to the rise-beams. The female half of the epoxy team started slopping glue on it before we even had it secured. Her partner was waiting for the stringer on the other side. The floor team was waiting at the foot of the bridge, each one holding a piece of the light, stressed permaplast over his head like an umbrella. They were dry and clean. I wondered aloud what they had done to deserve it, and Rogers suggested a couple of colorful but unlikely, possibilities.

We were going back to stand by the next stringer when the field first (name of Dougelstein, but we called him “Awright”) blew a whistle and bellowed, “Awright, soldier boys and girls, ten minutes. Smoke’em if you got ’em.” He reached into his pocket and turned on the control that heated our coveralls.

Rogers and I sat down on our end of the stringer and I took out my weed box. I had lots of joints, but we were ordered not to smoke them until after night-chop. The only tobacco I had was a cigarro butt about three inches long. I lit it on the side of the box; it wasn’t too bad after the first couple of puffs. Rogers took a puff, just to be sociable, but made a face and gave it back.

“Were you in school when you got drafted?” she asked.

“Yeah. Just got a degree in physics. Was going after a teacher’s certificate.”

She nodded soberly. “I was in biology…”

“Figures.” I ducked a handful of slush. “How far?”

“Six years, bachelor’s and technical.” She slid her boot along the ground, turning up a ridge of mud and slush the consistency of freezing ice milk. “Why the fuck did this have to happen?”

I shrugged. It didn’t, call for an answer, least of all the answer that the UNEF kept giving us. Intellectual and physical elite of the planet, going out to guard humanity against the Tauran menace. Soyashit. It was all just a big experiment. See whether we could goad the Taurans into ground action.

Awright blew the whistle two minutes early, as expected, but Rogers and I and the other two stringers got to sit for a minute while the epoxy and floor teams finished covering our stringer. It got cold fast, sitting there with our suits turned off, but we remained inactive on principle.

There really wasn’t any sense in having us train in the cold. Typical army half-logic. Sure, it was going to be cold where we were going, but not ice-cold or snow-cold. Almost by definition, a portal planet remained within a degree or two of absolute zero all the time — since collapsars don’t shine — and the first chill you felt would mean that you were a dead man.

Twelve years before, when I was ten years old, they had. discovered the collapsar jump. Just fling an object at a collapsar with sufficient speed, and out it pops in some other part of the galaxy. It didn’t take long to figure out the formula that predicted where it would come out: it travels along the same “line” (actually an Einsteinian geodesic) it would have followed if the collapsar hadn’t been in the way-until it reaches another collapsar field, whereupon it reappears, repelled with the same speed at which it approached the original collapsar. Travel time between the two collapsars … exactly zero.

It made a lot of work for mathematical physicists, who had to redefine simultaneity, then tear down general relativity and build it back up again. And it made the politicians very happy, because now they could send a shipload of colonists to Fomalhaut for less than it had once cost to put a brace of men on the moon. There were a lot of people the politicians would love to see on Fomalhaut, implementing a glorious adventure rather than stirring up trouble at home.

The ships were always accompanied by an automated probe that followed a couple of million miles behind. We knew about the portal planets, little bits of flotsam that whirled around the collapsars; the purpose of the drone was to come back and tell us in the event that a ship had smacked into a portal planet at .999 of the speed of light.

That particular catastrophe never happened, but one day a drone limped back alone. Its data were analyzed, and it turned out that the colonists, ship had been pursued by another vessel and destroyed. This happened near Aldebaran, in the constellation Taurus, but since “Aldebaranian” is a little hard to handle, they named the enemy “Tauran.”

Colonizing vessels thenceforth went out protected by an armed guard. Often the armed guard went out alone, and finally the Colonization Group got shortened to UNEF, United Nations Exploratory Force. Emphasis on the “force.”

Then some bright lad in the General Assembly decided that we ought to field an army of footsoldiers to guard the portal planets of the nearer collapsars. This led to the Elite Conscription Act of 1996 and the most elitely conscripted army in the history of warfare.

So here we were, fifty men and fifty women, with IQs over 150 and bodies of unusual health and strength, slogging elitely through the mud and slush of central Missouri, reflecting on the usefulness of our skill in building bridges on worlds where the only fluid is an occasional standing pool of liquid helium.

About a month later, we left for our final training exercise, maneuvers on the planet Charon. Though nearing perihelion, it was still more than twice as far from the sun as Pluto.

The troopship was a converted “cattlewagon” made to carry two hundred colonists and assorted bushes and beasts. Don’t think it was roomy, though, just because there were half that many of us. Most of the excess space was taken up with extra reaction mass and ordnance.

The whole trip took three weeks, accelerating at two gees halfway, decelerating the other half. Our top speed, as we roared by the orbit of Pluto, was around one-twentieth of the speed of light — not quite enough for relativity to rear its complicated head.

Three weeks of carrying around twice as much weight as normal it’s no picnic. We did some cautious exercises three times a day and remained horizontal as much as possible. Still, we got several broken bones and serious dislocations. The men had to wear special supporters to keep from littering the floor with loose organs. It was almost impossible to sleep; nightmares of choking and being crushed, rolling over periodically to prevent blood pooling and bedsores. One girl got so fatigued that she almost slept through the experience of having a rib push out into the open air.