But it wasn't 1922 any more. The design was a dozen years older now. So was Irving Morrell. He didn't show his years very much. He was still lean and strong in his early forties, and his close-cropped, light brown hair held only a few threads of gray. If his face was lined and tanned and weathered… well, it had been lined and tanned and weathered in the early 1920s, too. Hard service and a love for the outdoors had taken their toll there.

A Model T Ford in military green-gray bounced across the prairie toward the experimental model. One of the soldiers inside the motorcar waved to Morrell. When he waved back, showing he'd seen, the man held up a hand to get him to stop.

He waved again, then ducked down into the turret. "Stop!" he bawled into the speaking tube that led to the driver's seat at the front of the barrel.

"Stopping, yes, sir." The answer was tinny but understandable. The barrel clanked to a halt.

"What's up, sir?" Sergeant Michael Pound, the barrel's gunner, was insatiably curious-more than was good for him, Morrell often thought. His wide face might have been that of a three-year-old seeing his first aeroplane.

"I don't know," Morrell answered. "They've just sent out an auto to stop the maneuvers."

Sergeant Pound's wide shoulders moved up and down in a shrug. "Maybe the powers that be have gone off the deep end. Wouldn't surprise me a bit." Spending his whole adult life in the Army had left him endlessly cynical-not that he didn't seem to have had a good running start beforehand. But then his green-blue eyes widened. "Or do you suppose-?"

That same thought had been in Morrell's mind, too. "It would be sooner than I expected if it is, Sergeant. When was the last time those people up in Pontiac ever turned something out sooner than anyone expected?"

"I'm afraid that's much too good a question, sir." Pound pointed to the hatchway in the top of the commander's cupola. "Pop your head out and see, though, why don't you?" He made out sound almost like oat, as a Canadian would have; he came from somewhere up near the border. What used to be the border, Morrell reminded himself.