Over the industrial area of the city, Blade dropped to rooftop height and slowed down until he was practically drifting along. At last he saw the six-hundred-foot tower that held the generators for the force fields looming out of the darkness ahead. He climbed slightly, skimmed in over the edge of the roof, and landed. Instantly he was out of the flyer and flattening himself on the rough pebbled surface of the roof. He lay searching the darkness until he was certain that the roof was empty.
Blade had landed on the roof because he expected it to be unguarded, not because it was closest to the control room. That lay five hundred feet down a spiraling ramp. From the control room, another ramp led to the ground level. A dozen androids guarded that ramp. It was assumed that no one could possibly come down from above except other members of the Authority, and they could not possibly be dangerous to anything or anyone in Mak'loh.
Blade fixed his bayonet, raised his rifle, and began to descend the ramp. The rifle was set to stun, and he carried two fused gas grenades in his belt. Over his nose and mouth he wore one of the Authority's gas masks, a transparent sheet of plastic-like filtering material no heavier than a pocket handkerchief. Yet it would protect him completely from a gas that could kill an unprotected human being in thirty seconds.
The ramp was well-lit, and Blade could have gone much faster than he did. Instead, he waited at each turn, listening for the slightest noise from ahead. He heard only the distant pulsing of the field generators that came steadily through the solid walls. He saw only the ramp and walls, bare except for small doors that led into the generator compartments. He was able to measure his downward progress by reading off the markings on the doors.
A hundred feet down from the roof. Two hundred. Three hundred. It began to seem impossible that there could be anyone waiting for him, when all the lights went out. He hit the floor before the after-images faded from his eyes. As he stretched out, he heard feet climbing out of the darkness toward him. Blade unhooked one of the gas grenades from his belt and, without pulling the pin, sent it rolling down the ramp toward the oncoming footsteps.
It clattered away into the darkness. The footsteps halted. Then the white flare of rifle fire lit up the ramp. He'd drawn the fire to the approaching people, as he'd hoped to.
Aiming by sound in the darkness, the unknown rifleman made a good shot-good enough to burst the grenade. It went off with a sharp crack, followed by the spannnng of flying fragments and the wsssssh of escaping gas. A woman screamed.
Blade leaped to his feet and followed up the grenade. He rounded the bend as the lights came back on again. The ramp ahead was hazy with the yellow-green gas. Beyond the cloud of gas were two people in Authority coveralls. On the right a woman sat leaning against the wall, clawing at her throat. Her head was thrown back, and her eyes rolled frantically upward. A fragment of the grenade had torn open her cheek and her gas. mask, letting a lethal dose of the gas into her lungs.
On the left lay a man, staring as Blade came around the bend. With skill and precision, he snapped up his rifle and fired. Blade was already diving for the floor, squeezing the trigger of his own rifle, as the beam cracked past his head. Blade's own shot took the man in the leg.
Before the man could fire again, Blade rolled over and came up on his knees. They were too close now to fire. The man brought his rifle up to guard against a blow at his chest or throat. Blade went in over the man's guard with his bayonet, thrusting at his face and ripping open his mask. The man screamed. Blade reversed his rifle and cracked the man across the jaw with the butt, stunning him. He slumped back against the wall, dying more quietly than the woman as the gas ate into his lungs.
Blade sprang to his feet and plunged down the ramp at a dead run. It didn't matter whether or not there were anyone else waiting in ambush. He couldn't afford to waste a second. The noise of the fight must have alerted the people in the control room. He might have to kill them, and that would absolutely be the end of his chances for staying in Mak'loh after tonight. Damn it, he hadn't wanted anybody killed at all! There wouldn't have been, either, if these two clowns hadn't ambushed him-and where the devil had they come from anyway?
By the time Blade finished asking himself these questions, he was almost down to the level of the control room. He covered the last few yards of the ramp flattened against the wall. The control team was seated at the board, each man with a rifle across his knees. Only one had his eyes on the board. The other two were looking at the entrances to the upward and downward ramps. Blade raised his rifle and aimed it at the three. The movement caught one man's eye. He shouted and started to jump up.
At that moment, running feet sounded on the ramp from the ground floor. Two more armed men in Authority coveralls burst into view, and behind them six soldier androids. One of them saw Blade and shouted to the androids:
«Kill the Warlander!»
The time it took the man to shout was enough for Blade to act. He stunned the man who'd shouted, then dropped flat as the androids sent white fire crackling over his head. The walls and ceiling smoked and cracked where the beams struck. Those rifles were set to kill. Apparently those androids had been told Blade was no Master but a Warlander. That made him fair game.
Seeing androids firing on someone he knew to be a Master, one of the men at the control board sprang out of his chair, firing at the androids. He knocked out two of them and spoiled the aim of the other four. The second human attacker promptly shot the control man. The blast reduced his head to a charred ruin.
In the confusion, Blade dashed across the control room. The androids saw him but didn't fire. They couldn't risk hitting the control board or one of the Masters at it. Blade went over the top of the control board like a high jumper and dropped to his knees on the floor behind it. The two surviving control men threw themselves out of their seats, not sure what was going on but sure they didn't want to get killed in it. The surviving attacker had to climb over one of them to get around the control board at Blade. By the time he'd done this, Blade had his rifle aimed and fired with the muzzle almost against the man's chest. The man flew a foot into the air, then crashed to the floor.
The four surviving androids milled around without firing. They faced a situation not covered in their training, with no orders coming from their Masters or any others. Blade stunned one of them, and that persuaded the other three to turn and run off down the ramp toward the ground level. Blade took a high-explosive grenade, set the fuse for a delayed detonation, and fired it down the ramp after the fleeing androids. Silence followed the explosion.
Cautiously the two surviving control men rose to their feet. They looked at their dead comrade, the fallen humans and androids, and Blade standing by the board.
«What in the name of Peace is going on?» said one of them furiously. He started to sit down in his seat.
«There are going to be some changes made in this city tonight,» said Blade politely and tapped the man on the head with the butt of his rifle. Before the other control man could react, Blade fired and stretched him out on the floor along with everybody else.
On one side of the room was a large freight elevator that ran from top to bottom of the building. Blade opened the door and shoved all the bodies from both sides, human and android alike, into the elevator. Then he sent the elevator down to the ground level and locked the controls. That should keep everyone safe and out of his hair for the next few minutes. He could sort out who had been trying to do what to whom afterward.