"Why can't we go in there?" he asked, pointing to an a.s.semblage of heavy earth movers.

"Because the construction area is protected by a three-meter high wire fence topped with three rows of barbed wire with triple alarms on the gates and is patrolled by vicious large fanged guard dogs, is why."

"Oh," said Bill.

"Can't you do whatever you have to do right here?" asked Abigail.

"Yeah, you're not going to set off a very big explosion, are you?" Charlie blurted.

It is true that Charlie was still fairly intelligible. But the effects of the Sober ups were wearing off, and he tended to talk rather louder than normal.

So the word "explosion" did have the useful effect of sending several couples scurrying to the other side of the street and clearing a broad s.p.a.ce around them.

"For cryin' out loud," whispered Bill, "will you shut up about explosions! You want to get us arrested?" He turned to survey the wooden fence that closed off the vacant lot behind them. "There's bound to be a loose board or a gate in this fence. All I'm going to do inside is set off the smallest cap I've got. You'll get the briefest reading I can take, and that's it!"

While Bill and Charlie screened her from the street, Abigail slipped under the hinged plank they'd found. Charlie followed, and Bill came last, after slipping through his field kit. They stood alone in the empty lot.

"Oooo, isn't this exciting!" Abigail whispered.

"One of the most thrilling nights of my life," growled Bill. He'd long since resigned himself to the fact that the only way he was going to get rid of his friend, short of homicide, was to go through with this idiocy.

"Only let's be ready to get out of here quick, huh? I don't feel like trying to explain to any of New York's finest what I'm doing taking seismic readings in a vacant lot at nine o'clock Sat.u.r.day night."

"Is it that late already?" yelled Charlie, oblivious to his friend's attempts to shush him. "Hurry, hurry!"

"Anything, if you'll only shut up!" Bill moaned nervously. The others watched while he proceeded to dig a small hole with a collapsible spade. He put something from his case into it, then filled in the dirt, tamping it down tightly with the flat of the spade. He walked back to them, trailing two thin wires.

"This is exciting!" said Abigail. Bill gave her a pained look while Charlie fairly hopped with impatience.

Bill hit the small push b.u.t.ton device the wires led from. There was a m.u.f.fled thump! Clods of earth were thrown several meters into the tepid air of the New York night. They were accompanied by a non-organic shoe and several tong empty tuna fish cans.

"Well?" asked Charlie. He said it several times before he realized Bill couldn't hear him through the earphones. Finally he tapped him on the shoulder. "How long will it take?"

"Too long," said Bill, mooning at Abigail, who was inspecting the midget crater. "It was a very small bang. I've got to amplify and reamplify the results and wait for a proper printout from the computer. Maybe an hour, maybe two."

"That is too long!" Charlie whimpered piteously.

"That is too bad!" Bill was just about at the end of his good humor.

"Well, okay, but hurry it up, will you?"

Bill chewed air and didn't reply.

"I don't believe it!" There was a peculiar expression on the young geologist's face.

"What is it, what's happened?" said Abigail.

Bill turned slowly from his instruments, looked up at Charlie.

"You were right. Son of a b.i.t.c.h, you were right! I don't believe it, but . . . unstable! Geez, there's a regular cave down there!"

"Will it affect the tunnel?"

"No, not the line, but as for putting a station down here . . . The whole thing could collapse under other sections of the block. And I couldn't begin to predict what blasting here might do. I don't think anyone would get hurt, but the added expense . . . to ensure the safety of the crane operators and such . . ."

"Now, that would be serious," said Charlie. "Hey, what time is it?"

" 'Bout twenty to twelve," Bill replied, glancing down at his watch.

Charlie looked askance at his watch. "Heavens, it's twenty to twelve! I've got to run! See you soon, Bill!"

"Not likely," the geologist murmured.

"And thanks, thanks a million! You'll report your results to the commissioner's office, won't you?"

"Yeah, sure!" shouted Bill as his friend slipped through the loose board. No reason not to. He'd get a lot of credit for his foresight in detecting the faulted area. Maybe a paper or journal article out of it, too. And he'd take it after what he'd gone through tonight., "Now, don't be bitter," whispered Abigail, kissing him selectively. "You were marvelous! It wasn't that difficult. Besides, I think it was fun. And different. I've never been invited out for a seismic reading before."

Bill squinted glumly into the bright light that had settled on them. "And you'll be the first girl to be arrested for it, too." He sighed, kissing her right back.

"Van Groot! Hey, Van Groot!" Charlie had been stumbling through the tunnel for what seemed like hours. He'd wandered off and on the inspectors' walkway, unmindful of the fact that at any moment a train could have come roaring down the subterranean track to squash him like a bug.

"Here, gnome, here, gnome!" That sounded even worse. If he ran into a night inspector, he might be able to alibi away "Van Groot!" He didn't think he was clever enough to explain away "Here, gnome!"

Could he? Well, could he?

"De Puyster!" came a familiar voice. "Stop that shouting! I can hear you."

"Van Groot! I've found you!"

"Eureka," the gnome said dryly. "I'd sure be distressed if you'd found me and I turned out to be someone else."

Tonight the gnome administrator was wearing blue sharkskin. The beret was gone, replaced by a gunmetal-blue turban. A gold silk handkerchief protruded from the jacket pocket, matched to the gold shoes of water buffalo hide.

"Well?"

Charlie tried to catch his breath. It occurred to him that the steady diet of booze and exercise he'd been existing on all night did not go together like, say, chocolate chip and cookie.

"It's . . . it's all right! Everything's going to be okay. You can tell the relatives up north they can leave their maple syrup in the trees and not black out cities or any of that kind of stuff! Your mine won't be harmed."

"Why, that's merry marvelous!" said Van Groot. "How ever did you manage it? I admit I didn't have much confidence in you."

"Friend . . . friend of mine will present enough evidence to the Subway Planning Board showing that the ground, the area for the proposed station, is unstable. Unsuitable for practical excavation. If they think it'll cost them another five bucks, they'll move it to the south side of the tunnel. It was all a matter of just using the fact of your mine, not trying to pretend it wasn't there. They don't know it's a mine, of course."

"Seismic test?"

"Yeah. How did you know?"

"Reasonable. Three of my best pick gnomes reported in earlier this evening with migraines."

"Sorry."

"Don't give it no mind. Serves 'em right." Van Groot chuckled with satisfaction.

"Anyway," Charlie continued, "lives, time, and difficulty cannot stop the New York Subway Authority. But money . . . yeah, your mine is safe, all right."

"And so are your phone lines. So is that of the chairman of the board of General Computers."

"It'll be an express station, anyway. It shouldn't bother you too much," Charlie added. He was getting groggy again. His stomach and brain were ganging up on him.

"You've done very well, indeed, my boy: I'm surprised at you. It's been a long time since any human traded favors with us:"

"Aw, I'll bet you set the whole thing up. Anyway, I've got to be honest about it. I didn't do it for you. I didn't do it for me, either. I--I did it " And here he stood very tall, straight, and patriotic. " for the telephone company!" It was all he could do not to salute.

"Bravo! I wish there was something we could give you. A little token, a remembrance. I don't suppose you could use a nice scepter."

"I'm afraid not. No coronations for a month at least. I'm going on the wagon."

"Too bad. Well, here. Take this, anyway."

"Sure," said Charlie agreeably. The gnome thrust something into his raincoat pocket. "So long, Veen Grat! It was nice knowing you. Stop up at my place sometime. Play a couple games o' gi . . . o' gin!"

"I may do that," replied Van Groot. "Some night. I'll bring my own djinn."

Charlie was halfway up the tunnel when he whirled at a sudden thought and shouted back. "Hey, Van Greet!"

"Yes?" The voice floated down faintly from the distant blackness.

"What did you give me?"

"Why, a Flagan f.l.a.n.g.e, of course."

Charlie giggled as he thought about it. He couldn't stop giggling. However, it wasn't so funny. This made him nervous, and he stopped. He was just about to enter into a symbiotic relationship with his mattress when there was a knock at his door. It repeated insistently. It refused to go away.

Grumbling, he stumbled blindly to the door and peered through the peephole no one just opens his door at two in the morning in New York. Suddenly he was sure he'd actually gone to sleep four hours ago and was now dreaming. But he opened the door.

It was Miss High Pressure Area.

She had a robe draped loosely over a nightgown no self respecting spider would hake owned up to. c.u.mulus formations were disturbingly apparent.

"Can I come in, Mister . . . uh . . ."

"Dimsdale," mumbled Charlie. "Charlie Dimsdale." He took two steps backward. Since he was still holding on to the k.n.o.b, the door came with him.

She stepped inside, closed it behind her. The robe opened even more. So did Charlie's pupils. Proportionately.

"You're going to think I'm just terrible (this was a blatant falsehood), but . . ." She was staring at him in the strangest way. "I really can't . . . explain it. But, well, if you could just . . ."

She took a quick step forward and threw her arms around him. For someone out of practice, Charlie reacted well. She whispered something in his ear. It wasn't a weather report. What she said, softly, was, "It'll be okay. He thinks I'm in Geneva."

Charlie hung on and directed her into the apartment, kicking the door shut behind them. He listened gravely.

Now he knew what a Flagan f.l.a.n.g.e attracted.

THRUST.

Artists naturally inspire other artists. Contrary to certain theories, creativity does not take place in a vacuum. One could write an extensive book on the history of western art utilizing only paintings of the temptation of Saint Anthony as ill.u.s.trations. Science fiction writers can find the inspiration for whole novels in a throwaway line in a colleague's book.

Sometimes the inspiration takes the form of a challenge to do something different with a similar idea or approach. The result often surprises the writer, who may have started out intending to do something utterly different.

Many years ago Poul Anderson wrote a short novel about a beer powered s.p.a.ceship. Poul knows his science, and the darned thing worked. I've never asked him where the idea came from, but one can imagine him sitting deep in conversation with physicists and chemists, working out the precise details of requisite orbital mechanics and thrust necessary for the story. Alternatively, one can imagine the likely reality.

Perhaps the concept came in the form of a challenge from a fan or colleague. Or maybe it arose out of a bud attack of what the h.e.l.l. Regardless, the story that resulted was amusing and entertaining. Poul's stories always work.

Now me, my background in the hard sciences is the product of much head scratching and difficult research, not formal academia. But a challenge is a challenge. If a s.p.a.ceship powered by beer, why not one propelled by something more unlikely still?

DAY 001 22:32.

Boyd Cottle, Commander, still sounds funny. Everyone on board is at least as nervous as I am, which is plenty. That is only to be expected. As everyone is also far too busy to allow nerves to affect their performance, I am not worried.

Dr. Sese Oyo has refused to administer tranquilizers to those in need of a relaxant. I concurred with her decision. This point in our journey is no time for anyone to be functioning at less than maximum efficiency. I have a.s.signed additional work instead, believing that to be more effective in calming post-ignition jitters than a casual dose of coraphine.

All ship's functions are operating within 99.8 percent of prescribed parameters. Of course, the Secondjump pretty much runs herself. I can't escape the feeling that we're more pa.s.sengers than crew.

By the way, Eva Ostersund and I traced the two tenths error to a minor malfunction. possibly/probably located within solid waste recycling. Though far from posing an immediate problem, its existence offended Moutiers's professional pride. He's hard at work correcting the problem. Dr. Oyo is helping him as best she can without neglecting her own job, which is primarily to keep a wary eye on us first deep s.p.a.ce travelers.

We're all disgustingly healthy, she insists. Hardly surprising, since physical fitness was as important a criterion in our selection as any mental abilities.

Only sixteen years, four months, two days to Barnard's Star. That's barring the successful utilization of the Molenon Multiplier. None of us expects anything to come of that. We don't see how the installation of an alien device, however efficiently modified for human use, can help us. Especially when the experts don't profess to understand fully how it functions: I realize that the Multiplier is somehow supposed to react to mental output and translate that into s.p.a.ce time distortion leaps along our line of flight. I'll stick with the photon engines, thank you. Slow but steady wins the race.

On Day Twelve out Sese Oyo is supposed to lead us in our first "session." No one here is looking forward to what all consider essentially a waste of time, but orders are orders. The thought of six highly trained scientists squatting around muttering "om" while thinking positive thoughts about Barnard's Star strikes most of us as more than marginally ludicrous. I am willing to concede that such meditative sessions might have beneficial relaxing effects, however. That's the only reason I finally agreed to go along with this.

As nominal commander and chief programmer of mankind's first attempt to reach the stars, I'd like to register another formal objection, though.

DAY 003 14:32.

Smooth as vacuum so far. Moutiers found and corrected the problem with the solid waste recycler. Presently he's fiddling happily with his hydroponics. He figures he has thirty two years in which to create a better cantaloupe.