"But the tail is closed," Granby objected. "There's no rocket orifice."

"Dummy cover, I imagine," Feldstein said. "Right, Mr. Porter?"

"Wrong," said Porter angrily. "The motive power is supplied by a mechanism of my own devising! It has nothing to do with rockets! It's as superior to rocket power as the electric motor is to the steam engine!"

Feldstein and Granby glanced at each other, and an almost identical expression of superior smugness grew over their features. Feldstein looked back at Porter and said, "Mr. Porter, I a.s.sure you that it doesn't matter what you're using to lift that thing. You could be using dynamite for all I care. The law says that it can't leave the ground unless it's airworthy. Without wings or control surfaces, it is obviously not airworthy. If it is not a rocket device, then it comes under the jurisdiction of the Civil Aeronautics Authority, and if you try to take off without our permission, you'll go to jail.

"If it _is_ a rocket device, then it will be up to the s.p.a.ce Force to inspect it before take-off to make sure it is not dangerous.

"I might remind you, Mr. Porter, that you are on parole. You still have three years to serve on your last conviction. I wouldn't play around with rockets any more if I were you."

Porter blew up. "Listen, you! I'm not going to be pushed around by you or anyone else! I know better than you do what Alcatraz is like, and I'm not going back there if I can help it. This country is still Const.i.tutionally a democracy, not a bureaucracy, and I'm going to see to it that I get to exercise my rights!

"I've invented something that's as radically new as ... as ... as the Law of Gravity was in the Seventeenth Century! And I'm going to get recognition for it, understand me?" He gestured furiously toward the fuselage of the old _Supernova_. "That ship is not only airworthy, but _s.p.a.ce_worthy! And it's a thousand times safer and a thousand times better than any rocket will ever be!

"For your information, Mister Smug-Face, I've already flown her!"

Porter stopped, took a deep breath, compressed his lips, and then said, in a lower, somewhat calmer tone, "Know what she'll do? That baby will hang in the air just like your aircar, there--and without benefit of those outmoded, power-wasting blower fans, too.

"Now, understand me, Mr. Feldstein: I'm not going to break any laws unless I have to. You and all your bureaucrat friends will have a chance to give me an O.K. on this test. But I warn you, brother--_I'm going to take that ship up!_"

Feldstein's jaw muscles had tightened at Porter's tone when he began, but he had relaxed by the time the millionaire had finished, and was even managing to look smugly tolerant. Elshawe had thumbed the b.u.t.ton on his minirecorder when the conversation had begun, and he was chuckling mentally at the thought of what was going down on the thin, magnet.i.te-impregnated, plastic thread that was hissing past the recording head.

Feldstein said: "Mr. Porter, we came here to remind you of the law, nothing more. If you intend to abide by the law, fine and dandy. If not, you'll go back to prison.

"That ship is not airworthy, and--"

"How do you know it isn't?" Porter roared.

"By inspection, Mr. Porter; by inspection." Feldstein looked exasperated. "We have certain standards to go by, and an aircraft without wings or control surfaces simply doesn't come up to those standards, that's all. Even a rocket has to have stabilizing fins." He paused and zipped open his briefcase.

"In view of your att.i.tude," he said, pulling out a paper, "I'm afraid I shall have to take official steps. This is to notify you that the aircraft in question has been inspected and found to be not airworthy.

Since--"

"Wait a minute!" Porter snapped. "Who are you to say so? How would you know?"

"I happen to be an officer of the CAA," said Feldstein, obviously trying to control his temper. "I also happen to be a graduate aeronautical engineer. If you wish, I will give the ... the ... aircraft a thorough inspection, inside and out, and--"

"Oh, no!" said Porter. His voice and his manner had suddenly become very gentle. "I don't think that would do much good, do you?"

"What do you mean?"

"I mean that you'd condemn the ship, no matter what you found inside.

You couldn't O.K. a ship without airfoils, could you?"

"Of course not," said Feldstein, "that's obvious, in the face of--"

"All right, then give me the notification and forget the rest of the inspection." Porter held out his hand.

Feldstein hesitated. "Well, now, without a complete inspection--"

Again Porter interrupted. "You're not going to get a complete inspection, Buster," he said with a wolfish grin. "Either serve that paper or get off my back."

Feldstein slammed the paper into Porter's hand. "That's your official notification! If necessary, Mr. Porter, we will be back with a Federal marshal! Good day, Mr. Porter. Let's go, Granby."

The two of them marched back to their aircar and climbed inside. The car lifted with a roar of blowers and headed back over the mountains toward Albuquerque.

But long before they were out of sight over the ridge, Malcom Porter had turned on his heel and started back toward the cl.u.s.ter of buildings. He was swearing vilely in a rumbling monotone, and had apparently forgotten all about Elshawe.

The reporter followed in silence for a dozen paces, then he asked: "What's your next step, Mr. Porter?"

Porter came to an abrupt stop, turned, and looked at Elshawe. "I'm going to phone General Fitzsimmons in Washington! I'm--" He stopped, scowling.

"No, I guess I'd better phone my lawyer first. I'll find out what they can do and what they can't." Then he turned again and strode rapidly toward the nearest of the buildings.

Seventy-two hours later, Terry Elshawe was in Silver City, talking to his boss over a long-distance line.

"... And that's the way it lines up, Ole. The CAA won't clear his ship for take-off, and the s.p.a.ce Force won't either. And if he tries it without the O.K. of both of them, he'll be right back in Alcatraz."

"He hasn't violated his parole yet, though?" Winstein's voice came distantly.

"No." Elshawe cursed the fact that he couldn't get a vision connection with New York. "But, the way he's acting, he's likely to. He's furious."

"Why wouldn't he let the s.p.a.ce Force officers look over his ship?"

Winstein asked. "I still don't see how that would have hurt him if he's really got something."

"It's on the recording I sent you," Elshawe said.

"I haven't played it yet," Winstein said. "Brief me."

"He wouldn't let the s.p.a.ce Force men look at his engine or whatever it is because he doesn't trust them," Elshawe said. "He claims to have this new drive, but he doesn't want anyone to go nosing around it. The s.p.a.ce Force colonel ... what's his name? ... Manetti, that's it. Manetti asked Porter why, if he had a new invention, he hadn't patented it. Porter said that he wasn't going to patent it because that would make it available to every Tom, d.i.c.k, and Harry--his very words--who wanted to build it. Porter insists that, since it's impossible to patent the discovery of a new natural law, he isn't going to give away his genius for nothing. He said that Enrico Fermi was the prime example of what happened when the Government got hold of something like that when the individual couldn't argue."

"Fermi?" Winstein asked puzzledly. "Wasn't he a physicist or something, back in the Forties?"

"Right. He's the boy who figured out how to make the atomic bomb practical. But the United States Government latched onto it, and it took him years to get any compensation. He never did get the money that he was ent.i.tled to.

"Porter says he wants to make sure that the same thing doesn't happen to him. He wants to prove that he's got something and then let the Government pay him what it's worth and give him the recognition he deserves. He says he has discovered a new natural law and devised a machine that utilizes that law. He isn't going to let go of his invention until he gets credit for everything."

There was a long silence from the other end. After a minute, Elshawe said: "Ole? You there?"

"Oh. Yeah ... sure. Just thinking. Terry, what do you think of this whole thing? Does Porter have something?"

"d.a.m.ned if I know. If I were in New York, I'd say he was a complete nut, but when I talk to him, I'm halfway convinced that he knows what he's talking about."

There was another long pause. This time, Elshawe waited. Finally, Oler Winstein said: "You think Porter's likely to do something drastic?"