we'll fly our equipment out there and set up shop."

"What about power? If we set up near a power line, there'll be the company linemen coming around."

"I think a gas-engine generator will suffice," Morrow refuted. "We can haul gas to our deserted farm-house by car, then fly it out to our shop at night."

"What if somebody asks questions when we buy or lease this land, 'way off in the middle of nowhere?"

Morrow grinned. "If it's 'off in the middle of nowhere,' why should we buy it? Nobody'll know we're there!" He finished the last of his coffee and shoved his cup aside. "You've been flying over the Southwest for quite some time, Smitty. I'm hoping you can find the sort of isolated spot we'll need."

"There are places in that desert country where no white man's ever walked," Smitty confirmed. "They're still finding old Indian ruins nobody knew existed. But you know we could get arrested for all this, don't you?"

"Umm," Morrow ummed. "Building an experimental aircraft without authorization is unlawful, isn't it!"

"It's a federal offense!" Smitty exclaimed tersely. "Also, flying without a license is a federal offense—and you don't have one. And using government land without permission is a federal offense. And you'll have to quit your job with Western Electronics, won't you? What about your government contract?"

"I've given them two-weeks' notice," Morrow explained. "I'm allowed that. Of course, engineers are scarce—so scarce that by quitting my job here for no good reason, I'm getting myself blackballed out of every other company in the industry. None of 'em will hire me after that."

Smitty frowned concernedly. "Did you have to do it that way? I mean—suppose you just disappeared?"

Morrow shook his head. "There'd be federal investigators swarming around here three-deep!" he said. "I repeat, chum—engineers are scarce! And they don't like strange things happening to engineers who've been working on top-secret material. They catch more enemy agents that way."

"You sure they won't investigate you for quitting?" Smitty's gaze was thoughtful.

"I don't think so. In the next two weeks, I think I can convince them that I've simply turned out to be a stinker." Morrow grinned sourly. "They'll be glad to get rid of me, then."

"So you'll be ready to leave in two weeks." Smitty's tone was non-committal. "Then I'd better hop the next plane out this morning and start hunting up our base of operations."

"Don't you want to come out to Westerton and see the mechanism?"

"Uh-uh! Less we do to arouse suspicion, the better. I'll wire you, of course, when I find something. Have you got a gun?"

"Gun?" Morrow started. "No. Why should I?"

"Good." Smitty grinned lazily. "Don't carry one. They're too damned dangerous."

"I agree," Morrow said quietly. "It hadn't even occurred to me."

The train rattled and squealed through the hot summer afternoon, dust and foul-smelling smoke drifting back through the open coach windows. Morrow huddled in the corner of his seat and stared miserably out at the moving landscape.

Have you got a gun? The words echoed through his mind. Of course he didn't have a gun. He had never thought about it. Why should he need a gun?

But the answer was obvious. The secret of the gravity-control mechanism was precious.

Certain individuals, should they learn about it, would stop at nothing to get it. Including murder.

And if the government learned about it, they'd dump him into prison and throw the key away!

Thus, anyone who happened to find out about it would do one of two things—try to steal it or inform the authorities about it. Either one would mean catastrophe.

And there was only one sure way to keep anyone's mouth shut. Kill them!

Morrow knew he couldn't do that—he didn't have that sort of mentality. Nor could he stand by and let anyone else do it, not even Smitty.

But that was what Smitty had meant: he wouldn't stand by and let it happen, either.

Besides, any murder would bring on an investigation. They couldn't hide from that. So it boiled down to the simple fact that if anyone found out what they were doing, they'd be finished. Dead men don't talk, but they get a lot of other people curious.

Somehow, they had to keep it secret. They couldn't afford to let anyone find out about it.

And that could be disastrous. There had to be some alternative choice, in case anything like that should happen. There had to be an out. Without one, they'd be trapped.

They had to admit that some day, somehow, it would happen. Someone would find them out. And they had to be prepared to handle it. It would have to be handled in some way that didn't involve murder.

What other way was there?

There had to be some other way. Had to. Morrow chewed down his fingernails as the train lurched and rattled onward....

They pulled into Westerton with a hissing roar of steam and jolted to a stop beside the station. Morrow climbed down from the coach, wearily, and strode through the station to the street. It was late afternoon, but it was still hot. He pulled off his tie, stuffed it into his coat pocket, and unfastened his collar. Then he pulled off his coat, threw it over his shoulder, and rolled up his sleeves. That was better. Now for a bite to eat.

He strolled down the shady side of Railroad Avenue toward Switzer's Cafe.

Beyond the law! his footsteps rang on the sidewalk. Beyond the law, beyond the law—

Suppose someone did find them out? They could ask no one to protect their interests. There'd be no help from the authorities. They'd have to protect themselves—against anyone and everyone! How could they do that without guns, without the possibility of killing someone? They couldn't accept defeat that easily. The secret was too important to the future of mankind!

But what could they do?

Beyond the law! Beyond the law—

"Bill! Hey, wait up!"

Morrow stopped as if someone had jerked him back on a string. He whirled toward the sound of the voice before his mind had recognized it.

Gwyn came trotting down the street toward him, swinging a tennis racket in her hand. She was dressed in a white, short-skirted tennis suit. She stopped beside him, breathlessly, and put her arm through his. "Where you going?"

"Switzer's," he said. "Join me in a sandwich?"

"Okay." They strolled onward. Her skirt rippled over her smooth thighs, accentuating her tanned, slender legs. "I go on the four o'clock shift tomorrow. Want to come down at midnight and walk me home?"

"At midnight?" he taunted.

"Sure! It's the witching hour!" She wrinkled her nose up at him, teasingly. "What're you all dressed up in your suit for? Going somewhere?"

"Had to go to Newark today," he said. "To meet someone."

"Oh! Don't they even let you alone on Sundays?"

"Sometimes, honey." He grinned. "When are you going swimming with me again?"

"Well, if you want to swim—" She broke off and gazed up at him with mocking cynicism. Suddenly, her gaze went past him and she tugged at his arm. "Oh! Wait a second."

She guided him into the little newsstand and left him by the cigar counter, going on over to the magazine racks. Morrow stood back and admired her firm, shapely posterior.

"Ah!" she exclaimed, pulling out a magazine. She fished some change from the little purse on her belt and passed it to the newsstand operator. "Okay, let's go."

"What've you got there?" Morrow asked.

"You can see it after I have," she retorted. "Why don't you buy one yourself, for a change?"

She flipped through the magazine's pages as they walked along. Morrow took her elbow, guided her around a telephone pole, and maintained a discreet silence.

As they seated themselves in a booth, Gwyn closed the magazine and slid it across to him. Smiling,