Influx (30 page)

Cotton laughed.

Alexa didn’t laugh. “I might know someone who can help us gain access.”

Cotton raised an eyebrow. “Who?”

“Never mind who. But I need to get back into the building to speak with them.”

Cotton whistled. “Break into the dark tower?”

“You’re the master thief. Can you find me a way in? They’ll have rescinded my access rights, but I know every corner of that facility. I grew up there. And I’m certified in six dozen specialties within the BTC.”

“Yeah, I’ve tried breaking and entering there once before. The place is crawling with robots, surveillance dust, high-energy fields.” Cotton grinned. “I know because I spent the last several years studying it for weaknesses.” He killed the news feeds and instead brought up holographic projections of BTC floor plans.

Alexa looked shocked.

Cotton chuckled. “I knew it was only a matter of time until they tried to whack me. I had a feeling there would be no exit interview either. So I made plans for escape or infiltration at a moment’s notice, should either prove necessary.”

She studied the floor plans, turning the model from side to side. “I won’t ask how you got hold of these. Have you found anything useful?”

“No, I must say, the AIs locked this place up tight—triple redundant systems. Their security is basically perfect—especially when they’re in high alert, which they’ll be in right now. The nanorod walls can stop just about anything, and the EM plasma rippling over its surface is conducting about four hundred gigajoules. That plasma would diffract lasers. There’s really no force short of a thermonuclear explosion that could get through it.”

Grady watched Cotton turn the 3D plans first one way, then another. “That’s not true.”

“What’s not true?”

“That there’s no force that could get through that perimeter defense. Because there is a force that already does.”

They looked at him.

Then Alexa smiled. “Gravity.”

Grady nodded. “The gravity mirror.” He approached the holographic 3D image of the building. “Cotton, your examination for weaknesses probably made a significant assumption.”

“What’s that?”

Grady swept his hand to turn the building’s image upside down. “That the direction for ‘down’ would never change. Reexamine the plans. Try to find something significant at the outer perimeter wall that might suffer a malfunction if the world were to suddenly turn upside down.”

Cotton studied the altered view of the BTC headquarters building. A grin crossed his face. “I must say, Mr. Grady, you have a decidedly devious mind . . .”

J
on Grady adopted a wrestler’s
stance in a forty-foot section of the workshop that they’d cleared of all shelving and equipment. He wore a stripped-down version of the gravity-mirror harness that Cotton had cannibalized from Morrison’s damaged armor. Grady also wore Morrison’s armored boots and gauntlets. The boots were roomier than he’d like, but he’d padded them with foam inserts. Besides he didn’t think he’d be doing too much walking with them.

Grady studied the microscopic circuitry of the harness, glittering in the workshop’s light. “This is the gravity mirror all right, but God, it’s shrunk down a thousand times in size. How in the hell do they get enough energy to it?”

Cotton tapped an assembly elsewhere on the harness. “Sixty megawatt fusion reactor.”

“That little thing?”

“Well, it’s got armor around it, so the reactor is smaller than that.”

“Good lord. I’m walking around with enough power to light a small city.”

Alexa pushed between them. “Let’s get on with this.”

Several nylon safety straps ran from Grady’s harness to metal beams ahead, behind, left, and right, as well as iron rings on the ground and a strap looped over a rafter. Whatever direction he might fall, he wouldn’t fall far.

Alexa checked his equipment, loosening the harness a bit. “You don’t need the gravis so tight. Remember it’s not like a rappelling harness—you’re not hanging from this; it’s changing the direction of down, and you’ll be falling along with it.”

He grimaced. “Gravis—who came up with that name?”

“I don’t know. Somebody on the BTC’s mirror project team.”

“I invented the damn thing. I should have had a chance to name it.”

Cotton stood nearby. “That was your first mistake, Mr. Grady. A thing can’t exist in people’s minds until it has a name. But with a name, it can exist in people’s minds without existing at all. You should always come up with a name before you set out to create anything.”

Grady frowned. “What does
gravis
mean, anyway?”

Alexa was inspecting his boots. “Latin for ‘weighty.’ ‘Heavy.’”

He jumped slightly to test the weight. “Well, maybe the name fits after all. This must weigh forty pounds.”

“It won’t once you activate it. And that’s a military gravis—armored. Mine is much lighter. The suit this was part of had electroactive polymer musculature to carry around the weight.”

Cotton murmured, “We might be seeing some of those later, if things go amiss.”

“Ignore him.” She was kneeling at his boot. “You feel the control interfaces at your toes?”

The padded lining of his overlarge boots made them fit better, and Grady depressed two small nodules with this toes. “Yeah. Got ’em.”

Alexa gestured to his other boot. “And here?”

He nodded as he did the same on the left.

“All right. Default control setup works like this: You control yaw by—”

“Yaw? What’s yaw?”

“Aeronautical term—it’s the horizontal direction you’re heading.” She pirouetted gracefully and came back to her start. “You control yaw direction for descent by angling your foot like this.”

“Direction of descent—I thought you said it was a horizontal direction?”

She gave him a look.

“Oh. Right. We’re choosing the direction of down.”

Cotton snickered. “You invented the technology, Mr. Grady. Try to keep up.”

Alexa lifted her right foot and flexed it first rightward, then leftward again.

Grady lifted his own right foot and did likewise.

“Good. And you control pitch—that is, vertical direction—with your left foot.” She tapped his leg.

He picked up his left foot.

She demonstrated. “Flex your foot downward or upward—you go where your toes point.”

“Got it. Seems simple enough. And the controls inside the shoe?”

“Each shoe has a button and a slide controller. Ignore the buttons for now—they’re locks, so you can maintain whatever setting you’re on without effort. But indoors, that could be dangerous for a novice. So only work with the slide controller for now. Do you feel them?”

Grady felt with his toes and nodded. “Yeah.”

“The right controller sets the diameter of the gravity mirror—you can make it just big enough to cover you, or a bit bigger than that to accommodate extra material. And the left controller sets the focus—nudge it forward with your toes and the gravity is focused one hundred percent in that direction; pull back on it and the gravity gets dispersed.”

“So half gravity, quarter gravity—like that?”

“A percentage, but yes.”

Grady frowned. “Wait. Even in microgravity, I’d keep accelerating until I achieved relative terminal velocity.”

“Normally true, but software in the gravis curtails acceleration.”

“How’s it do that?”

“It flips the mirror for microseconds in order to maintain constant velocity relative to the ambient gravitational field.”

Grady considered this. “Huh. I probably would have thought of that eventually . . .”

“Pay attention, Jon.” She motioned to her boot. “Pull the slide controller all the way back, and you diffuse gravity into an equilibrium.”

“Meaning I float at a full stop.”

“Well, as you know, equilibrium won’t cancel out momentum you already have. To slow down you need to reverse direction of descent momentarily.” She looked him up and down. “You ready to give it a try?”

He tugged at the nylon harnesses holding him in place. They seemed secure. “Sure. How much trouble can I get in?”

Cotton chuckled. “Famous last words.”

“Start out by pulling the right controller all the way back. I want your gravity field to be as narrow as possible. That’ll make it just above your height.”

Grady used his toes to pull the controller back. “So a roughly six-foot sphere around me will be subjected to my gravity field.”

“Right. In fact, do press the button to lock that setting. We don’t want you accidentally expanding the sphere and bringing a wall down on us.”

He clicked the button and tried nudging the slider. It was locked down fast. “Okay. I got it. It’s locked.”

“Now pull back on the left controller to set it to equilibrium. That way you won’t fly off anywhere.”

He did so and nodded.

“Okay. Let’s power it up.”

Grady hesitated a moment before studying his gauntlets for the control interface. The boots and gauntlets apparently had power sources of their own and were paired via a q-link to the harness—and presumably to the rest of the assault armor, had it been present. In a moment Grady remembered how to make a pop-up holographic control panel appear above his arm.

Alexa pointed. “Remember not to go into this interface while you’re airborne. Never power down while in the air.”

“Got it.” He tapped the master power switch.

And suddenly felt like he was in free fall. His stomach lurched as if he’d plunged down the first hill on a roller coaster. He pushed off slightly from the concrete floor and moved upward until the nylon straps restrained him.

Grady felt a smile spread across his face, and he laughed. “This is really incredible!”

Cotton stood next to Alexa now, watching. “They really must have messed with his head in that prison.”

Alexa waved to get Grady’s attention. “Okay. Now I want you to experiment with directional control. Don’t do it at full gravity—we can’t trust these straps or the beams in an old building like this. So choose your direction of descent with both feet . . .”

Grady concentrated and chose a direction to the left—toward an open space of lab.

“Good. Now slowly push forward on the left controller to bring yourself up to a quarter gravity.”

Grady took a deep breath and nudged his toes forward against the control. He suddenly felt a physical manifestation of the natural forces of the universe reaching out to him, tugging him to the left—which had now suddenly become a wholly convincing “down.” A glance at Alexa and Cotton made it seem as though they were standing on the face of a concrete cliff, while the workshop floor stretched down in a sheer drop to a brick wall a hundred feet below. “My God!”

The nylon straps restrained him from continuing, and he hung like a bug in a spiderweb until he could get his heart rate to come down.

“You look a little red-faced, Jon. You all right?”

He laughed. “Yeah. Beautiful! It’s amazing. Just gotta wrap my head around it, that’s all.”

Grady changed the direction of down without changing the intensity of gravitation, and the angle of down swept across his horizon like the sun rising and setting. The straps and beams creaked.

“Just miraculous . . .” He experimented a bit more, flexing the nylon straps first one direction and then another. Finally he looked up at them and nodded. “I’m ready for a free flight, I think.”

Alexa looked grim. “Be careful, Jon. You can easily kill yourself with this equipment—especially in a room this size. It could be a hundred-foot fall right into a brick wall—and then you might collapse the brick wall, if you’re not careful.”

He took a deep breath and reviewed his familiarity with the controls. “No. No, I think I’ve got this. Worst-case scenario, I just pull back with my left toes on the controller, and I go into weightlessness. Right?”

She nodded. “Right. Remember that if you get into trouble.”

Cotton frowned. “It’s a bit more than that. Weightlessness is all well and good, but watch the direction of down near walls and furniture. They were designed with a pretty boring direction for down in mind, so don’t go wrecking anything.”

“Don’t worry. I’ve got this. Hell, I invented this.”

“Let’s not get cocky.”

“Here, I’m going into equilibrium. Start undoing the straps.”

Alexa stepped forward, keeping most of her body weight outside the altered gravity field as she started unfastening the straps from Grady’s gravis. In a few minutes he was floating free.

“Ha, ha!” Grady flexed his arms and started doing a Russian folk dance in midair. “Hey! Hey! Hey!”

“All right. Enough of that. Try to move toward that doorway.”

Grady did one last “Hey!” and then he directed his right foot toward the target. He concentrated, and then, keeping his left foot level, he slowly ramped up the force of gravity.

Too fast—he was already falling at thirty miles an hour toward the doorway.

“Left foot! Pull back!”

Grady gripped the left nodule controller with his toes and brought it back to zero gravity—but his momentum kept him going forward at a considerable clip.

In a moment of clarity, he twisted his right foot and ramped up the gravity slightly in that direction, turning in an arc back the way he came—like an ice skater burning off momentum by digging in his skates.

“Watch the shelving!”

Grady just barely bumped the shelving unit as he came to a stop—while the new direction of down caused one shelving unit to lean sideways, spilling everything off its racks. Grady immediately pulled back into a gravity equilibrium, and all of the items on the shelves started floating—lots of small valves and electronic components.

Cotton grabbed his head with his hands. “For fuck’s sake! Look at the mess you’re making.”

Alexa nodded encouragement. “That was good thinking, Jon. Your knowledge of physics is going to help you here. Newton’s first law. Uniform motion.”

Grady nodded. “Right.” He patted the shelf in front of him. “Thanks, Isaac.”

“Now try it again.”

Cotton added, “And this time try not to almost kill yourself.”

Grady ran through his knowledge of the controls again and mimed his planned actions. He finally looked up. “All right. I got this.” He looked across the room toward the doorway, then pointed. “I’m heading right over by the entrance.”

“Not too close. The doors might fall through.”

“Okay. I’ll stop ten feet away.”

“You sure you’re ready?”

He clapped his diamondoid-armored gauntlets together. “Hell, yeah!”

Cotton mumbled to Alexa. “I don’t think I can watch this.”

“O ye of little faith, Cotton.”

“You forget who I was until recently.”

Grady took a deep breath and then altered the direction of descent. This time he gradually increased the force with his left toes, pushing forward only slightly. He began to glide above the floor, some of the debris falling along with him, scraping on the concrete as it did.

“Well, now you’re just scattering the mess around.”

Grady concentrated on the door as he maintained a steady five-mile-per-hour pace. He called back, “I can see it now. You’ve got to have a very fine touch in close spaces.”

Alexa nodded. “Right. You’re doing excellent.”

“You really have to be careful what you get near. Otherwise you quickly get a cloud of debris around you.”

In a few moments, Grady eased back on the controller, and this time, he lowered his pitch until he could drag his foot along the floor. In a moment he leveled it out and came to a standing stop almost exactly ten feet away from the doorway. He then put himself into half gravity with down being down. Locking gravity, he turned to face them, arms spread wide. “What do you think?”

Alexa nodded. “Nicely done. I think it’s time we take it up a notch.”

Grady raised his eyebrows. “Meaning?”

Cotton answered for her. “Meaning it’s time for this little birdie to leave the nest.”

 • • • 

Grady stood on the flat silver roof of the Fulton Cold Storage building—the multistory painted sign looming behind him. It was about two in the morning. The lights of downtown Chicago were visible in the distance, but otherwise the streets ten stories below were quiet.

Alexa stood next to him in her formfitting tactical jumpsuit. Her own gravis was integrated into its nanotech fabric, while his looked clunky by comparison. It was a sultry summer night, but he was dressed for wind, with a sleek pair of windsurfing goggles that Cotton had given him.

Alexa walked over to the parapet at the edge of the roof and looked down. “Let’s not stay too close to the ground when we get up there. No sense in calling undue attention to ourselves.” She walked back to him. “Besides, the higher up you are, the more time you have to deal with mistakes.”