No lights showed in the cockpits of the shuttles. That meant no one aboard to send out signals over the shuttles' radios. If Blade took out the main radio station, that should do the job.

The station with its hundred-foot mast was on the left, just under two hundred yards away. Light spilled out through the open door, illuminating a wide expanse of grass and concrete in front of the station. Blade saw two soldiers standing on the roof, a rocket launcher lying between them. Fortunately they were looking the other way. He crept to the edge of the illuminated area, looked in all directions, and saw nothing suspicious. Then he sprinted toward the open door.

The thud of his feet alerted the men on the roof. He heard one of them shout as he came pounding up to the door. Then he was inside the radio building, pulling the door shut with one hand and raising the hurd-ray with the other. He was in a short corridor with doors opening off either side, leading to a large room filled with consoles and switchboards. Blade aimed the projector and fired a long burst, sweeping everything he could see. Metal cracked and melted, wiring shorted, threw sparks, and gushed smoke, heavy objects crashed to the floor, and voices started screaming, cursing, and shouting all at once.

Blade started down the corridor to catch the people in the room before they recovered from the surprise. A door to his right flew open and an officer with a drawn laser pistol popped out. The two men collided. The laser beam hissed past Blade and knocked a chunk out of the ceiling. Blade punched the officer in the stomach, then smashed the butt of the hurd-ray across the back of his neck. Blade leaped over the fallen man and charged into the main room.

Bullets flew past Blade as one of the radio operators swung in his seat and emptied a pistol. The bullets smashed more radio gear without touching Blade. Then the hurd-ray was sweeping along the consoles and all three radio operators slumped in their seats, two headless and one burned completely in two. Blade fired two more quick blasts to quiet the writhing bodies on the floor, then played the beam in a complete circle around him. By the time he'd finished, every recognizable piece of communications equipment in the room was half-melted junk. Blue and green smoke swirled like a fog and clawed at Blade's mouth and nose.

Breathing shallowly, he took out one of the bombs, set both the time fuse and the booby-trap, then shoved it out of sight under one of the bodies. The radio station had to be completely demolished, otherwise someone might still improvise an emergency signal by hooking a portable radio to the big mast on the roof.

The bomb was set. Blade flattened himself against the wall and crept back to the corridor. Voices sounded from the outer door. He pulled out a golf-ball sized blue grenade, armed it, and hurled it down the corridor. When the echoes from the explosion died away the voices were only fading moans. Blade got outside as fast as he could.

A rifle went off overhead as Blade broke into the open. One bullet hit him in the shoulder but his body armor kept it out of his flesh. He ducked, searching for the rifleman and raising his projector. The two soldiers on top of the radio building were alert and one was firing his rifle in all directions. The other had the rocket launcher on his shoulder and was peering around in search of a target. The area in front of the building was dark now that the lights inside were out, and neither man could see clearly.

Blade's night vision was a good deal better. He picked off the rifleman, then shifted aim to the soldier with the rocket launcher. The man moved just as Blade fired and the ray only burned off one leg. He screamed, hopped wildly about, then toppled off the roof, taking the launcher with him. Blade was about to dart forward and retrieve it when the bomb in the radio building went off prematurely.

The bomb he'd planted was the equivalent of more than a ton of TNT. The radio building vanished in a hurricane blast of smoke, flame, and hurtling wreckage. Blade went down again as if he'd been hit by a truck. He lay in the mud as the wreckage pattered and crashed down about him. The radio mast wavered, leaned to the right, and toppled over. Before the scream of twisting metal died away, Blade was on his feet again.

By now Blade had made enough noise to wake the dead, and everyone in Station Four had to be on the move. He sprinted back toward the fence, projector in one hand and a grenade in the other. Someone in a building to Blade's left foolishly switched on a light, silhouetting three helmeted figures. He hurled the grenade, heard glass smash, then the explosion and the screams.

The streets and alleys of Station Four were rapidly filling with running men, some in uniform, some half-dressed, some in pajamas, one or two stark naked. Officers shouted orders which made no sense and which weren't obeyed even when anyone heard them. No one paid any attention to Blade. He was in Targan uniform, he wasn't moving any faster than most of the other men, and it was too dark to recognize the ray projector in his hand.

Blade took advantage of the confusion to run even faster. Sooner or later even the half-trained and wholly panic-stricken Targan soldiers would sort themselves out enough to become dangerous opponents. The underground couldn't afford too many casualties among their attack group without fatally weakening the boarding party.

All the clothed men seemed to be in uniform. That meant the scientific and engineering people were staying under cover. Good. Several of them were underground supporters with key roles in the plan, and the underground had no real quarrel with the rest. No civilian of any sort had a place in this sort of firelight in any case.

Blade reached a spot where he had a clear line of fire to the perimeter lights and dropped to one knee. Sighting precisely, he picked off all the lights he could see, working from left to right. Eight-nine-ten-eleven-then the answering flare of hurd-rays blazed from the darkness beyond the perimeter. The rest of the attackers were coming in.

Blade jumped up and ran back into the station. As he ran he pulled a white armband from his belt pouch and tied it around his left arm. Both sides would be wearing Targan uniforms, but the underground's people would have white armbands. Blade hoped that would be enough to prevent fatal mistakes.

By the time Blade reached the center of the station he could hear a swelling battle roar from behind him. Hurd-rays crackled, rifles hammered, grenades thumped and crashed, men screamed in rage or pain. Blade kept running, leaped a drainage ditch, then slipped on the far bank and went to his knees.

A few yards away stood a rough sheet metal building. Beyond it lay the far perimeter of the station, its lights still burning. Metal clanged and a motor whined. The door of the building slid open, but no one was foolish enough to turn on a light. A six-wheeled flatbed truck rolled out of the door and turned toward Blade. Two men sat in the darkened cab, the driver and a gunner. Two more rode on the back, hanging on to the mounting of a heavy laser.

That truck had to be stopped. If it wasn't, it would get way in the darkness and the rain, then move on until it had clear weather. Then the laser could reach out to a communications satellite or even the starship. The surprise the underground desperately needed would be gone.

Blade aimed his hurd-ray and fired. The projector hissed faintly, glowed, then gushed smoke. Blade threw it down and reached for a grenade. He was rising to throw it when someone in the building flicked on all the lights. Suddenly Blade was painfully visible as he balanced on the edge of the drainage ditch.

The driver of the truck jammed on the brakes and twisted the wheel. One of the men in back fired a pistol at Blade. The bullet spun him around as he hurled the grenade. It sailed over the truck and landed in the door of the building. All the lights went out but the truck kept going.