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He surveyed his stock. From a back corner he brought out a small machine with an especially meditative tempo in its standby-lamp flicker. The tempo accelerated a little when he put it on a work-bench.

“They got batteries to stay activated with,” he observed, “and only need real juice when they’re workin’. This here’s a play-back recorder they had over in Recreation. Some guys trained it to switch frequencies–speed-up and slow-down stuff. They laughed themselves sick! There used to be a tough guy over there,–a staff sergeant, he was–that gave lectures on military morals in a deep bass voice. He was proud of that bull voice of his. He used it frequently. So they taped him, and Al here–” the name plainly referred to the machine–“used to play it back switched up so he sounded like a squeaky girl. That poor guy, he liked to busted a blood-vessel when he heard himself speakin’ soprano. He raised hell and they sent Al here to be rehabilitated. But I switched another machine for him and sent it back, instead. Of course, Al don’t know what he’s doing, but–“

* * * * *

He brought over another device, slightly larger and with a screen.

“Somebody had a bright notion with this one, too,” he said. “They figured they’d scramble pictures for secret transmission, like they scramble voice. But they found they hadda have team-trained sets to work, an’ they weren’t interchangeable. They sent Gus here to be deactivated an’ trained again. I kinda hate to do that. Sometimes you got to deactivate a machine, but it’s like shooting a dog somebody’s taught to steal eggs, who don’t know it’s wrong.”

He bolted the two instruments together. He made connections with flexible cables and tucked the cable out of sight. He plugged in for power and began to make adjustments.

The small scientist asked curiously:

“What are you preparing, Sergeant?”

“These two’ll unscramble that broadcast,” said Sergeant Bellews, with tranquil confidence. “Al’s learned how to make a tape and switch frequencies expert. Gus, here, he’s a unscrambler that can make any kinda scanning pattern. Together they’ll have a party doing what they’re special trained for. We’ll hook ’em to Betsy’s training-terminals.”

He regarded the two machines warmly. Connected, now, their standby lights flickered at a new tempo. They synchronized, and broke synchrony, and went back into elaborate, not-quite-resolvable patterns which were somehow increasingly integrated as seconds went by.

“Those lights look kinda nice, don’t they?” asked the sergeant admiringly. “Makes you think of a coupla dogs gettin’ acquainted when they’re goin’ out on a job of hunting or something.”

But Lecky said abruptly, in amazement:

“But, Sergeant! In the Pentagon it takes days to unscramble a received broadcast such as Betsy receives! It requires experts–“

“Huh!” said Sergeant Bellews. He picked up the two machines. “Don’t get me started about the kinda guys that wangle headquarters-company jobs! They got a special talent for fallin’ soft. But they haven’t necessarily got anything else!”

* * * * *

Lecky followed Sergeant Bellews as the sergeant picked up his new combination of devices and headed out of the Rehab Shop. Outside, in the sunshine, there were roarings to be heard. Lecky looked up. A formation of jets swam into view against the sky. A tiny speck, trailing a monstrous plume of smoke, shot upward from the jet-field. The formation tightened.

The ascending jet jiggled as if in pure exuberance as it swooped upward–but the jiggle was beautifully designed to throw standard automatic gunsights off.

A plane peeled off from the formation and dived at the ascending ship. There was a curious alteration in the thunder of motors. The rate-of-rise of the climbing jet dwindled almost to zero. Sparks shot out before it. They made a cone the diving ship could not avoid. It sped through them and then went as if disappointedly to a lower level. It stood by to watch the rest of the dog-fight.