Современная электронная библиотека ModernLib.Net

The Big U

ModernLib.Net / Киберпанк / Стивенсон Нил / The Big U - Чтение (стр. 17)
Автор: Стивенсон Нил
Жанр: Киберпанк

 

 


The situation upstairs had begun to take on some texture. The dead-end outside the elevator was blocked by a mountain of light-yellow potato-egg mixture. The APPASMU plowed through with ease, and Klystron/Chris could now hear the rumble of the heavy TUG machine gun. The APPASMU could not withstand such firepower, so Klystron/Chris decided to outflank it by exiting the kitchens through a back route. He aimed the APPASMU down an aisle lined with great pressure vats and headed for the door.

Unfortunately a stray weapons burst had struck a pressure vat by the exit. The top of the vat exploded off, blasting a neat hole through the ceiling, and the vat, torn loose by the recoil, tumbled over and spilled thousands of gallons of Cheezy Surprise Tetrazzini onto the floor. This mixture had long, long overcooked in the fighting, causing the noodles to congeal into a glutinous orange mass with an internal temperature over three hundred degrees Fahrenheit, which had rolled out on impact and squatted sullenly in the doorway, swathed in its nebula of live orange steam. Klystron/Chris fired a few desultory rounds into it and concluded that this doorway was now impassable. They would have to choose a serving bay, pass through the Caf and hope to avoid the TUG machine gun— exactly what the APPASMU was built for, though to fire it now would be to use up their first and only surprise.

"Well have to make the most of it, men. We'll head for the lines of the SUB/Terrorist Axis and pick up all the weaponry we can find. If you see anything that looks like it's armor-piercing, sing out!" Without further chitchat, and accompanied by a soft plopping of potato-egg, the minitank was out of the kitchen and into a serving bay which was being disputed in hand-to-hand combat. The astonished fighters could only stand in confusion, and only two rounds glanced off the APPASMU's armor before they entered the Caf. The tank's entrance occasioned a surprised lull in the fighting. Klystron/Chris and Chip Dixon used the flat-trajectory indoor mortars to lob a few stun grenades behind the line of overturned tables and main salad bar that served as the SUB bunker. At this, the Axis forces turned and ran through the shattered plate-glass walls behind them and scurried for F Tower. The poorly armed wretches who had been pinned down by their presence emerged and sprinted for the exits.

They got a fine haul from the stunned and demoralized soldiers in the Axis bunker: a Kalashnikov, a twelve-gauge slug gun, ammo, knives, clubs and gas masks, all plastered with smoldering lettuce and sprouts but functional. After collecting the booty and using his intercom to dispatch a negotiator to cut a deal with the TUGgies— who were clearly winning in this theater— Klystron/Chris sent the APPASMU crashing magnificently through a plate-glass panel that had miraculously remained unbroken, and pointed it toward E Tower and the endangered Septimius Severus Krupp.

There we met them, below E Tower. From a distance we could make out the insignia: a stylized plan of the Plex (eight Swiss crosses within a square) with a sword and phaser rifle crossed underneath and the word MARS above. "I guess that would be Fred Fine," I said.

The top hatch flipped open and a helmeted, goggled head arose, speaking through the PA system. "This is the Grand Army of Shekondar the Fearsome Expeditionary Plex Purification Warfare Corps. Resistance is useless." The tank pulled up next to us, and Fred Fine pulled back the mask to reveal (alas) his face. He spoke with his usual grating humility.

"Mr. President. Professor Redfield. Sorry if we upset you. This is a little something we've been developing as a career suitability demonstration project during the recent years of decaying civilization. In fact, once we're on secure ground, I'd like to discuss the possibility of receiving some academic credit for it, Mr. President. The basic design principles are the same as for any armored vehicle."

"I see that," said Krupp, nodding. "Heimlich would go nuts over this. But what you need, I think, are more liberal arts courses." "Dr. Redfield will find the infrared personnel sensing equipment very interesting. But sirs, we have heavy fighting in the Cafeteria. My men have secured the other end of this hallway while I came to get you."

Chip Dixon had clambered out to reconnoiter and inspect the APPASMU. Seeing the three mangled B-men, he scurried over to them and slid his hand under one's ear to check his pulse. A queer look came on his face and he stared directly up at Fred Fine. "Jim, he's dead," he whispered.

"Sir to you," said Fred Fine, nonplussed, "and my name is not Jim, it's . . . something else. Anyway, sirs, my men are now securing D Tower, with direct elevator connections to the Burrows. We've arranged with your anti-terrorist forces to courier you to C Tower, which they are securing. Chip will steer the APPASMU, you'll sit in my place and I'll serve as point man. Dr. Redfield is welcome to follow. But first we must retrieve those weapons!" He clomped over to the remains of the Crotobaltislavonians.

Sarah slept until about noon, when a corpse burst through her window. Her eyes were half open, so that it exploded out of a dream: a leathery female cadaver from the Med College, wearing the wig Sarah had left behind in Tiny's room, white clown makeup smeared on the face. This effigy had been placed in a hangman's noose and thrown out the window above hers; it swung down and crashed through her window, then swung out and in and out as Sarah struggled between sleep and awakeness, disbelief and terror. At last she chose awakeness and terror, and stared at the corpse, which grinned.

She tried to scream and gag at the same time, but did neither. Outside she heard the excited whispers of the lurking Terrorists. She took three slow breaths and pulled her .38 from under her pillow. As she was sliding her feet into her running shoes, she found a big shard of window glass on one of them and nearly panicked. She picked up her phone and punched out Hyacinth's number (after the rape attempt she had bought a pushbutton phone so she could dial silently). Hyacinth answered alertly. Sarah pushed the 1 button three times and hung up, stood, slipped on the pack containing her emergency things and padded to the door. Sleeping in her long johns was neither cool nor glamorous, but proved useful nonetheless.

There was a long wait. The Terrorists were quietly getting impatient. wondering whether she was in there, talking about shooting the door open-they knew a police lock would be difficult to blow off. Sarah stood shivering, feet on marked places on the floor, gun in right hand, doorlock in left. If only there had been a way to practice this!

Hyacinth's gun sounded. Horribly slow, she snapped the lock, moved her hand to the doorknob, grasped it, turned it, swung the door open and examined the five men standing there. They were looking sideways toward Hyacinth. As they began to turn their faces toward her, she finally picked out the one with the gun— thanking God there was only one gun. For just a second now they were trapped and helpless, caught in a double take, trying to process the new information. For the first time Sarah understood how generals and terrorists made their plans of attack.

The one with the shotgun had turned it toward Hyacinth and now seemed indecisive. The other men were stepping back and dropping to the floor. Sarah's finger twitched and she fired a round into the ceiling.

The rest happened in an instant. She pointed her gun at the head of the armed man. One of the other four suddenly whipped a handgun from his belt. Sarah wheeled and shot him in the stomach. The one with the shotgun tried to swing around but scraped the end of his barrel on the wall; Sarah and Hyacinth fired two shots apiece; three missed, and one of Sarah's hit the man in the arm and dropped him. The other three had simply disappeared; looking down the ball, Sarah saw them piling into the fire stairway.

There was less blood than she had expected. Before she could examine the two wounded, Hyacinth floated past and Sarah followed. They ran to the elevator lobby, where Lucy was waiting with an elevator and another gun. That was what had taken so long— an elevator! But many Terrorists were pouring into the lobby as the doors began to creep shut. A Terrorist glided toward the wall buttons, hoping to punch the doors open; Sarah made eye contact with him; he kept going; she fired a shot whose effects she never saw. The doors were closed, joining in front of them to form a Big Wheel mural. The car was motionless for a sickeningly long time, and then shifted and began to sink.

Casimir Radon only came in at the end of it. He had gotten up earlier than any of us that morning. Opening his curtains to let in the gray light, he had seen the blind patches grow, and had put on his glacier glasses before allowing any more light past his eyelids. He lay in bed until the blind spots had shifted over to the right side of his vision, then read some physics and tinkered with the railgun's electronics. Finally he went to lunch; but seeing the outbreak of violence there, he headed back up the stairs to look for Sarah, meeting me and Krupp. After we parted, he continued resolutely. placing his feet as gently as possible on each tread and pressing carefully until he moved up to the next step. As a result he moved with a smoothness that was not even noticed by the little embryonic headache in his brain.

A few seconds after leaving us behind, something flashed by him down the center of the stairwell, and a second later— accompanied by a brief stabbing light— came a sharp awesome KABOOM that KABOOMed many times over as it bounded up and down the height of the stairwell. To Casimir it was like being bayoneted through the head, and when he dared to move again, the headache struck so badly that he could only laugh at it. He proceeded toward the Castle in the Air with a helpless moaning laugh, heels of hands buried in temples, and heard other, less tremendous explosions.

The door to E12S was open and three Terrorists were running through in a panic, headed for thirteen. Something white flashed by the door, heading for the lobby. Casimir ran into the hall and was promptly knocked aside by a migration of Terrorists, who emerged from several nearby rooms. Falling, he glimpsed Sarah and Hyacinth, clad in white long johns, running with guns and backpacks down the hall. He managed to trip a few of the Terrorists, more by flailing away randomly than by craftiness, and stood up and began to head for the elevators too. As he approached the lobby, there was another painful WHAM and he felt a sharp pain in his chest. He had no idea what had happened. In fact, Sarah's last bullet, after ricocheting off several walls and passing through a fire door, had in mangled form dispersed its last bit of energy by bouncing sharply off Casimir's T-shirt.

Something hard was against the back of his head— the floor? The Terrorists were standing above him. He stood up. Two wounded men were being carried toward him, leaving uneven trails of blood on the shiny tile floor. He followed these trails to their sources, and stepped through Sarah's open door.

A clown-cadaver was smiling at him through the window and he knew he was hallucinating. Nothing he did could dissolve the ghastly sight. Noticing a Terrorist looking at him from the doorway, he walked over, slammed the door in his face and locked it. Then he wandered around the room, picking up and examining random objects— numerous mementos of Sarah's friends and family, books he would never read, a little framed collection of snapshots. A family portrait, graduation photos of several smiling good-looking earnest types— which was her boyfriend?— and various shots of Sarah and friends being happy in different places, including some of Hyacinth. Tucked in one corner of the frame was a folded piece of paper. Casimir felt filthy reading it; it was obviously a love note. He had never gotten one himself, but he figured this was one of them. Getting to the bottom, he read the name of the mysterious man Sarah so obviously preferred to Casimir: Hyacinth.

He sat on her bed, elbows on knees, scarcely hearing the shouting outside. He smiled a little, knowing Sarah and Hyacinth had made it out safely.

He knew why he'd come up here. Not to assist Sarah, or go with her, but to save her. To create a debt of gratitude that could neither be erased nor forgotten. She would have to love him then, right? This impossible secret hope of his had made his thoughts so twisted and complicated that he no longer knew why he was doing anything; he was never one to analyze his pipe dreams. But now she was safe. His goal was accomplished. And if she had done it herself, and not seen him, then that was his fault. She was safe, and now he had to be happy whether he wanted to or not.

Most importantly, he had seen the proof he had needed for so long, the undeniable proof that she would never be in love with him. All his wild fantasies were impossible now. He could purge himself of his useless infatuation. He could relax. It was wonderful. The Terrorists shot out the lock, came in and grabbed his arms. In the hall he was thrown on his back and straddled by a Terrorist while others sat on his arms and legs. Then they all stared at him dully, lost and indecisive.

"Let's knock his teeth out," said a voice from behind Casimir. A hammer was given to the man on his chest. Someone held Casimir by the hair. Casimir's vision was sharp and bright without the glacier glasses; the hammerhead was cold and luminous in the white light, finely scratched on its polished striking face, red paint worn way from use. The Terrorist was examining Casimir's face as though he could not find the mouth, neither excited nor scared, just curiously resigned to what he was doing and, it seemed, at peace with himself.

This is what I get, being heroic for the wrong reason, thought Casimir. He could not take his eyes off the hammer. He began to struggle. His captors clamped down harder. The torturer made a swing; but Casimir jerked his head to one side and the blow slid down his cheek and crushed a fold of neck skin against the floor.

Then he felt a light tingly feeling and sat up. The hammerer slid backward onto the floor. Casimir's hands were free and he punched the man in the nuts, then pulled his legs free and stood up. Everything he touched now snapped away and started bleeding. Someone was coming with a shotgun, so Casimir re-entered Sarah's room and bolted the door with her police lock.

He smashed the photo frame on her desk, removed a snapshot of Sarah and Hyacinth, wrapped it in Kleenex and put it in his pocket. The only potential weapon was a fencing saber, so he took that. He knocked over a set of brick-and-board shelves, and using one brick as a hammer and another as an anvil, snapped off the final inch of the blade to leave a clean, sharply fractured edge.

When he opened the door again, all he had to do was push the barrel of the shotgun out of the way and push his saber through one of the owner's lungs. The gun came free in his hand and he hurled it backward out the window, where it bounced off the cadaver and fell to Tar City. In the ensuing melee Casimir slashed and whipped several Terrorists with the blade, or punched them with the guard, and then they were all gone and he was walking down the stairs.

His destination was a room in a back hallway far beneath A Tower: University Locksmithing. This was the most heavily fortified room in the Plex, as a single breach in its security meant replacing thousands of locks. It had just one outside window, gridded over by heavy steel tubes, and the door was solid steel, locked by the toughest lock technology could devise. As Casimir approached it, he found the nearby corridors empty. The security system was still on the ball, he supposed. But the events of the day had unleashed in Casimir's mind a kind of maniacal, animal cunning, accumulated through years of craftily avoiding migraines and parties.

The corridors in this section were relatively narrow. He put his feet against one wall and his hands against the other, pushed hard enough to hold himself in the air, slowly "walked" up the walls until his back was against the pipes on the ceiling, then "walked" around the corner and down the hall toward that steel door. Usually the only beings found on the ceilings of the Plex were bats, and so the little TV camera mounted above the door was aimed down toward the floor. Eventually Casimir was able to rest his hands directly on the camera's mounting bracket and wedge his feet into a crack between a ceiling pipe and the ceiling across the hail. Not very comfortable, he used one hand to undo his belt buckle. In five minutes, during which he frequently had to rest both arms, he was able to get the belt over another pipe and rebuckle it around his waist, giving himself an uncomfortable but stable harness.

Within half an hour, the TV camera, inches from his face, began to swivel back and forth warily. Casimir loosened his belt buckle. The lock clicked open and an old man emerged, holding a pistol. Casimir simply dropped, pulled the gun free, flung it back into the room, then dragged the locksmith inside. While the man was regaining his breath, Casimir went through his pockets and came up with a heavily laden key-chain.

After a while the locksmith sat up. "Whose side are you on?" he said.

"No side. I'm on a quest."

The locksmith, apparently familiar with quests, nodded. "What do you want with me?" he asked.

"The master keys, and a place for the night. It looks as though I've got both." Casimir tossed the keys in his hand. "Where were you taking these keys?"

The locksmith rose to his feet, looking suddenly fierce and righteous. "I was getting them out of the Plex, young fella! Listen. I didn't spend thirty-five years here so's I could sell the masters to the highest bidder soon as things got hairy. I was taking those out of the Plex for safekeeping and damn you for insulting me. Give 'em back."

"I have no right to take them, then," said Casimir, and dropped the keys into the locksmith's hands. The man stepped back, first in fear, then in wonder.

There was a high crack and the locksmith fell. Casimir ran for the door, where a loner with a bolt-action .22 was frantically trying to get a second round into the chamber. Casimir nailed him with the saber, kicked him dead into the hallway, grabbed the .22 and locked the door.

The locksmith was struggling to his feet, pulling something bright from his sock. The big keychain was still on the floor where he'd dropped it. He now held seven loose keys in his hands, and with a distant, dying look he gazed through the crossbars of the window at the million lights of the city. Casimir ran and stood before him, but seeing his shadow cross the man's face, fell to his knees.

"Thirty-five years I looked for someone worthy to take my place," whispered the Locksmith. "Thought I never would, thought it was all turning to shit. And here in the last five minutes here, lad, I pass my charge on to you." He parted his hands, allowing the keys to fall into Casimir's. Then he dropped his hands to his sides and died. Casimir gently laid him out on a workbench and crossed his arms over his heart.

After pinching the barrel of the .22 shut in a vise, Casimir curled up on a neighboring workbench and slept.

Though Casimir considered Sarah and Hyacinth safe, they were only relatively safe when they and Lucy left E12S. Their destination was the Women's Center, and their route was a young and disorganized war.

They went first to my suite— I had given Lucy a key. They remained for a couple of hours, borrowing clothes, eating, calming down and building up their courage.

Fully clothed, equipped and reloaded, they broke out my picture window in midafternoon and lowered themselves a few feet onto Tar City. For the time being they kept their guns concealed. Running across the roof it was possible to cover ground swiftly and avoid the thronged corridors. After a couple of hundred feet and a few far misses by bombardiers above, they arrived at one of the large holes in the roof and ducked down into the kitchen warehouses. Approaching quietly, they slid into the narrow space between the boxes and the ceiling and avoided detection. Following Hyacinth, they slid on their bellies down the shelf to the nearest door. This turned out to be guarded by a GASF soldier, who watched the door while a dozen TUGgies methodically tore open and examined crates of food. Hyacinth slid a hundredweight of pasteurized soybean peanut butter substitute onto the guard's head and they dropped to the floor, pulling more crates with them to hinder pursuit. Running into the kitchens, they found themselves cheerfully greeted by more TUGgies. Fortunately the kitchen was huge, full of equipment and partitions and fallen junk and clouds of steam and twists and turns, and after some aimless running around they came to the giant wad of Cheezy Surprise Tetrazzini, squeezed past it through the door, and entered a little-used service corridor filled with the wounded and scared. Four of the latter, also women, seeing that these three were armed and not as scared as they were, joined up. The seven edged into a main hall and made for the Women's Center.

This was in the Student Union Bloc, an area not as bitterly contested as the Caf or the Towers. Hyacinth wounded two Droogs on the way and reloaded. Eventually they came to a long hail lined with the offices of various student activities groups, dark and astonishingly still after their riotous trip. Here they slowed and relaxed, then began to file along the corridor. Soon they smelled sweet incense, and began to make out the distant sounds of chanting and the tinkling of bells. Moving along quietly, they paused by each door: the Outing Club; the Yoga, Solar Power and Multiple Orgasm Support Group; the Nonsocietal Assemblage of Noncoercively Systematized Libertarian Individuals; Let's Understand Animals, Not Torture Them; the men's room; the punk fraternity Zappa Krappa Claw; the Folk Macrame Explorers. As they approached the Women's Center, the sweet odors grew stronger, the soprano-alto chant louder.

"Looks like the Goddess worshipers got here first," said Sarah. "I guess I can live with that, if they can live with someone who shaves her pits." She and Lucy and Hyacinth concealed their guns again, not wanting to seem obtrusive.

Hyacinth knocked. There was a lull, then the voice of Yllas Freedperson, then a new chant.

"You don't know the True Knock," said Yllas.

"Well, we're women, this is the Women's Center."

"Not all women can enter the Women's Center."

"Oh."

"Some have more man than woman in them. No manhood can be allowed here, for this place is sacred to the Goddess."

"Who says?"

"Astarte, the Goddess. Athena. Mary. Vesta. The Goddess of Many Names."

"Have you been talking to her a lot lately?" asked Hyacinth.

"Since I offered her my womb-blood at the Equinox last week, we have been in constant contact."

"Well look," said Hyacinth, "we didn't come to play Dungeons and Dragons, we're here for safety, okay?"

"Then you must purifiy yourself in the sight of the Goddess," said Yllas, opening the door. She and the two dozen others in the Center were all naked. All the partitions that had formerly divided the place into many rooms had been knocked down to unify the Center into a single room. They couldn't see much in the candlelight, except that there was a lot of silver and many daggers and wands. The women were chanting in perfect unison.

"You cannot touch our lives in any way until you have been made one with us," continued Yllas.

Sarah and company declined the invitation with their feet. Before they got far, Yllas started bellowing. "Man-women! Heteros! Traitors! Impurities! Stop them!"

Nearby doors burst open and several women jumped out with bows and arrows taken from the nearby P. E. Department. Sarah began a slow move for her gun, but Hyacinth prevented it. "Take them to PAFW," decreed Yllas, "and when Astarte tells us what is to be done, we will take them away one by one and give them support and counseling."

Escorted by the archers, they traveled for several minutes through Axis hallways, leaving the Union block and entering the athletics area. Here they were turned over to a pair of shotgunwielding SUBbies, who led them into the darkened hallway behind the racquetball courts. Each of the miniature doors they passed had been padlocked; and looking through the tiny windows, they saw several people in each court. Finally they arrived at an open door and were ushered into an empty court, the door padlocked behind them. On the walkway that ran above the back walls of the courts two guards paced back and forth. Taped above the door was a hastily Magic-Markered sign:

WELCOME

TO THE

PEOPLE'S ALTERNATIVE FREEDOM WORKSHOP

The Axis clearly lacked experience in running prisons. They did not even search them for weapons. The few guards were not particularly well armed and followed no strict procedures; they seemed incapable of dealing with relatively simple situations, such as requests for feminine hygiene materials. All tough decisions such as this had to be transmitted to a higher authority, who was holed up at the far end of the upper walkway.

After a few hours, several more people had been put in their cell, among them some large athletes. Escape was easy. They waited until the pacing guards on the walkway were both at one end, and then two large men simply grabbed Hyacinth by the legs and threw her up over the railing. She rolled on her stomach and plugged the two guards, who did not even have time to unsling their weapons. The rest of the incompetent, somnambulistic personnel were disarmed, and everyone was free. Five high-spirited escapees ran down the walkway toward the office of the high-muck-a-muck, firing through its door the entire way. When they finally kicked open the bent and perforated remains, they found themselves in the courts reservation office. A Terrorist sat in a chair, rifle across lap, staring into a color TV whose picture tube had been blasted out. Hyacinth, Lucy and Sarah, not interested in this, headed for the Burrows with several other refugees in tow. The domain of Virgil was near.

Not far from that gymnasium bloc, on the fourth floor. Klystron/Chris inspected his lines. He had just approved one of the border outposts when Klystron had called him back and berated him for his greenhornish carelessness. Right there, he pointed out, a crafty insurrectionist might creep unseen down that stairway and set up an impregnable firepost! The GASF soldiers, awed by his intuition, extended their lines accordingly.

As Klystron/Chris stood on those stairs making friendly chitchat with the men, the warble of a common urban pigeon sounded thrice from below, warning of approaching hostiles. Klystron/Chris whirled, leapt through a group of slower aides and crouched on the bottom step to peer down the hallway. His men were assuming defensive stances and rolling for cover.

He exposed himself just enough to see the vanguard of the approaching force. As he did, the voice of Shekondar came into his head, as it occasionally did in times of great stress: "She is the woman I want for you. You know her! She is ideal for you. The time has come for you to lose your virginity; at last a worthy partner has arrived. Look at that body! Look at that hair! She has long legs which are sexually provocative in the extreme. She is a healthy specimen."

He could hardly disagree. She was evolutionarily fit as any female he had ever observed; he remembered now how the firm but not disgusting musculature of her upper arm had felt when he had set her down on that dinner table during her fainting spell. But at this juncture, when she needed to be strong in order to prevail and preserve her ability to reproduce, she showed the bounce and verve that marked her as the archetypal Saucy Wench of practically every dense sword-and-sorcery novel he had ever consumed in his farmhouse bed on a hot Maine summer afternoon with his tortilla chips on one side and his knife collection on the other. Later, after he had saved her from something— saved her from her own vivacious feminine impulsiveness by an act of manly courage and taken her to some sanctuary like the aisle between the CPU and the Array Processing Unit— then she could allow herself to melt away in a rush of feminine passion and show the tenderness combined with fire that was enticingly masked behind her conventional calm sober behavioral mode. He wondered if she were the type of woman who would tie a man up, just for the fun of it, and tickle him. These things Shekondar did not reveal; and yet he had told him that they matched! And that meant she could be nothing other than the fulfilment of his unique sexual desires!

The group approached their perimeter. Klystron/Chris staggered boldly into the open, hindered by a massive erection, hitched up his pants with the butt of the Kalashnikov and waved the group to a halt. She dipped behind a pillar and covered him with a small arm— a primitive chemical-powered lead-thrower that was nevertheless dangerous. Then, seeing many automatic weapons, she pointed her gun at the ceiling. Her troop slowed to a confused and apprehensive halt. They were disorganized, undisciplined, obviously typical refugee residue, led by a handful of Alpha types with guns— not a minor force in this theater, but helpless against the GASF.

"Hi, Fred," she said, and the obvious sexual passion in her voice was to his ears like the soothing globular tones of the harp-speakers of Iliafharxhlind. "We were headed for the Burrows. How are things between here and there?"


  • Страницы:
    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20