It had been cold in the bedroom. As he slogged his way to the barn, he wondered if he would turn into an icicle before he got there. A wry chuckle made a fogbank swirl around his face for a moment, till the fierce wind blew it away. People said there wasn't so much work on a farm in winter. In a way, they were right, for he didn't have to go out to the fields.

In spring and summer, though, he didn't have to work in weather like this. The body heat of the livestock kept the barn warmer than the weather outside, but warmer wasn't warm. He fed the horse and cow and pigs and chickens and cleaned up their filth. By the time he was done with that, he was warmer, too.

His eye fell on an old wagon wheel, the sort of junk any barn accumulated. Under it, hidden in a hole beneath a board beneath dirt, lay dynamite and fuses and blasting caps and crimpers and other tools of the bomb-maker's art. McGregor nodded to them. They would come out again.

Rain, some of it freezing, poured down out of a bleak gray sky. A barrel rumbled across the muddy Kansas prairie toward Colonel Irving Morrell. The cannon projecting from its slightly projecting prow was aimed straight at him. Two machine guns projected from each side of the riveted steel hull; two more covered the rear. A pair of White truck engines powered the traveling fortress. Stinking, steaming exhaust belched from the twin pipes.

The charge would have been more impressive had it been at something brisker than a walking pace. It would have been much more impressive had the barrel not bogged down in a mud puddle that aspired to be a pond when it grew up. The machine's tracks were not very wide, and it weighed almost thirty-three tons. It could have bogged on ground better than that it was traveling.

Morrell snapped his fingers in annoyance at himself for not having brought out a slate and a grease pencil with which he could have taken notes here in the field. He was a lean man, nearing thirty, with a long face, weathered features that bespoke a lot of time out in the sun and wind, and close-cropped sandy hair at the moment hidden under a wool cap and the hood of a rain slicker.

His boots made squelching noises as he slogged through the ooze toward the barrel. The commander of the machine stuck his head out of the central cupola that gave him and his driver a place to perch and a better view than the machine gunners and artillerymen enjoyed (the engineers who tended the two motors had no view, being stuck in the bowels of the barrel).

"Sorry, sir," he said. "Couldn't spot that one till too late."

"One of the hazards of the game, Jenkins," Morrell answered. "You can't go forward; that's as plain as the nose on my face. See if you can back out."

"Yes, sir." Lieutenant Jenkins ducked down into the cupola, clanging the hatch shut after himself. The engines changed note as the driver put the barrel into reverse. The barrel moved back a few inches, then bogged down again. Jenkins had spunk. Having shifted position, he tried to charge forward once more and escape the grip of the mud. All he succeeded in doing was getting deeper into it.

Morrell waved for him to stop and called, "You keep going that way, you'll need a periscope to see out, just like a submersible."

He doubted Jenkins heard him; with the engines hammering away, nobody inside a barrel could hear the man next to him screaming in his ear. Even so, the engines fell silent a few seconds later. The traveling fortress' commander could see for himself that he wasn't going anywhere.

When the young lieutenant popped out through the hatch again, he was grinning. "Well, sir, you said you wanted to test the machine under extreme conditions. I'd say you've got your wish."

"I'd say you're right," Morrell answered. "I'd also say these critters need wider tracks, to carry their weight better."

Lieutenant Jenkins nodded emphatically. "Yes, sir! They could use stronger engines, too, to help us get out of this kind of trouble if we do get into it."

"That's a point." Morrell also nodded. "We used what we had when we designed them: it would have taken forever to make a new engine and work all the teething pains out of it, and we had a war to fight. With the new model, though, we've got the chance to do things right, not just fast."

That was his job: to figure out what right would be. He would have a lot to say about what the next generation of barrels looked like. It was a great opportunity. It was also a great responsibility.

More than anything else, barrels had broken two years of stalemated struggle in the trenches and made possible the U.S. victory over the CSA. Having the best machines and knowing what to do with them would be vital if-no, when, he thought-the United States and Confederate States squared off again.

For the moment, his concerns were more immediate. "You and your men may as well come out," he told Jenkins. "We've got a couple of miles of muck to go before we get back to Fort Leavenworth"

"Leave the barrel here for now, sir?" the young officer asked.

"It's not going anywhere by itself, that's for sure," Morrell answered, with which Jenkins could hardly disagree. "Rebs aren't about to steal it, either. We'll need a recovery vehicle to pull it loose, but we can't bring one out now because it would bog too." Recovery vehicles mounted no machine guns or cannon, but were equipped with stout towing chains, and sometimes with bulldozer blades.

More hatches opened up as the engineers and machine gunners and artillerymen emerged from their steel shell. Even in a Kansas December, it was warm in there. It had been hotter than hell in summertime Tennessee, as Morrell vividly remembered. It had been hot outside there, too. It wasn't hot here. All eighteen men in the barrel crew, Jenkins included, started shivering and complaining. They hadn't brought rain gear-what point, in the belly of the machine?

Morrell sympathized, but he couldn't do anything about it. "Come on," he said. "You won't melt."

"Listen to him," one of the machine gunners said to his pal. "He's got a raincoat, so what the devil has he got to worry about?"

"Here," Morrell said sharply. The machine gunner looked alarmed; he hadn't intended to be overheard. Morrell stripped off the slicker and threw it at him. "Now you've got the raincoat. Feel better?"

"No, sir." The machine gunner let the coat fall in the mud. "Not fair for me to have it either, sir. Now nobody does." That was a better answer than Morrell had expected from him.

Lieutenant Jenkins said, "Let's get moving, so we stay as warm as we can. We're all asking for the Spanish influenza."

"That's true," Morrell said. "First thing we do when we get in is soak in hot water, to get the mud off and to warm us up inside. And if thinking about that isn't enough to start you moving, I'll give two dollars to any man who gets back to the fort ahead of me."

That set the crew of the barrel into motion, sure enough. Mor-rell was the oldest man among them by three or four years. They were all veterans. They were all convinced they were in top shape. Every one of them hustled east, in the direction of the fort. They all thought they would have a little extra money jingling in their pockets before the day was through.

Morrell wondered how much his big mouth was going to cost him. As he picked up his own pace, his right leg started to ache. It lacked the chunk of flesh a Confederate bullet had blown from it in the opening weeks of the war. Morrell had almost lost the leg when the wound festered. He still limped a little, but never let the limp slow him down.

And he got to Fort Leavenworth ahead of any of the barrel men. As soon as he reached the perimeter of the fort, he realized how worn he was: ridden hard and put away wet was the phrase that came to mind. He'd ridden himself hard, all right, and he was sure as hell wet, but he hadn't been put away yet. He wanted to fall into the mud to save himself the trouble.