Anthony Horowitz - Skeleton Key

But even if Sarov’s plans had been revealed, even if a rescue operation had somehow been put in place, Alex was still in grave danger. Conrad was on the balls of his feet, looking to find a way past the metal rod. And what about the nuclear bomb? Alex didn’t know if Sarov had primed it to go off in five hours or five minutes. Knowing how mad he was, it could have been either.

Conrad leapt forward. Alex lunged with the metal pole and felt it ram into the man’s shoulder. But his smile of satisfaction vanished as Conrad grabbed hold of the rod with both hands. He had allowed Alex to hit him simply because that would bring the rod within his reach. Alex pulled back, but Conrad was much too strong for him. He felt the metal being torn out of his hands, cutting into his palms. Alex let go of the rod, then cried out as Conrad swung it viciously like a scythe. The metal slammed into the side of Alex’s leg and he was down again, on his back, unable to move.

More gunfire. Although his vision was dimmed, Alex saw two more grenades arc through the air. They landed next to one of the ships and exploded, a huge fireball of flame. Two of Sarov’s men were lifted into the air. Two or even three machine-guns began to chatter simultaneously. There were screams. More flames.

Conrad stood over him.

He seemed to have forgotten what was happening in the shipyard. Or perhaps he didn’t care. He pulled up one sleeve, then the other. Finally he dropped down so that he was sitting on Alex’s chest, one knee on either side. His hands closed around Alex’s throat.

Gently, enjoying what he was doing, he began to squeeze.

Alex felt himself being slowly strangled. He couldn’t breathe. There were already black spots in front of his eyes. But he had seen something that Conrad hadn’t. It was slowly making its way back towards them, crossing the water. The magnetic disc.

Conrad had left the controls on in the cabin in his haste to get over to Alex. Was it possible…? Alex remembered what Sarov had told him about his assistant. He had metal pins all over his body. There were metal wires in his jaw and a metal plate in his head…

The magnet was almost over them, blotting out the sky. Alex couldn’t breathe. Conrad’s hands were tight around his throat. He had only seconds left.

With the last of his strength, he suddenly lashed out with both his fists, at the same time jerking his body up. Conrad was taken by surprise. He started back, his hands loosening. The magnet was right above him. Alex saw the shock in his face as all the metal plates, pins and wires in his body entered the magnetic field. Conrad yelled and disappeared, plucked into the air by invisible hands. His back smashed into the disc with a terrible snapping sound. At once he went still, attached to the disc by his shoulders, his arms and legs hanging down.

The crane continued moving, carrying the limp body in a gentle curve over the quay.

Alex gasped for breath. The world swam back into focus. “What an attractive man,” he muttered.

Slowly, he pulled himself to his feet, then staggered over to the handrail where he had been chained. He propped himself against it, no longer able to stand without its support. There was a burst of gunfire, longer and more powerful than any that had gone before. A helicopter had appeared, flying in low over the sea. He saw an airman sitting in the open doorway, his legs dangling, a huge gun cradled in his lap. One of Sarov’s trucks was blown off its wheels, twisted over twice and exploded in flames.

The bomb…

Alex could work out what was happening here later. Nobody would be safe until the bomb was defused. His throat was still burning. It took all his strength to draw breath. But now he ran forward and climbed into the crane. He had operated a crane before. He knew it couldn’t be too difficult. He reached out and took the controls. At the same moment, one of Sarov’s men fired at him. The bullet clanged against the metal casing of the cabin. Alex ducked instinctively and pulled a lever.

The magnetic disc stopped and swung in the air with Conrad stuck beneath it like a broken doll. Alex pushed forward and it began to drop down into the sea. No! That wasn’t what he wanted. He pulled the lever back and it stopped abruptly. How did you turn off the magnet? Alex looked around him and saw a switch. He pressed it. A light came on over his head. Wrong switch! There was a button set in the control stick he was holding and he tried that. At once, Conrad fell free. He plunged into the grey, freezing water and sank immediately. With all the metal inside him, Alex thought, it was hardly surprising.

He pulled the control stick towards him and the magnet rose again. A soldier ran across the quay towards him. There was a burst of fire from the helicopter and the man fell down and lay still. Now… concentrate! Alex tried a second lever and this time the magnet began its return journey over to the submarine. It seemed to take for ever. Alex was only partly aware of the battle still raging all around him. It seemed that the Russian authorities had arrived in force. Sarov’s men were heavily out-numbered but were still fighting back. They knew they had nothing to lose.

The magnet reached the submarine. Alex dropped it towards the silver chest, remembering how delicately it had been done by Conrad. He was less skilled-and winced as the heavy disc smashed into the top. Damn! He would set the thing off himself if he wasn’t careful. He pressed the button in the control stick a second time and actually felt the magnet come alive and knew that the nuclear bomb was in its grip. He pulled back, lifting the magnetic hoist. The silver chest came clear of the submarine.

Now, a centimetre at a time, he swung the arm of the crane over the water, bringing the nuclear bomb back towards the harbour. A second bullet slammed into the crane and the window shattered right next to his head. Alex cried out. Glass fragments showered over him. He thought he was going to be blinded. But when he next looked up, the nuclear bomb was over the quay and he knew that he was nearly finished.

He lowered it. At the very moment it touched the ground, there was another explosion, louder and closer than any that had gone before. But it wasn’t nuclear. One of the warehouses had shattered. Another was on fire. A second helicopter had arrived and it was strafing the ground, whipping dust and debris into the air. It was hard to be sure, but Alex thought that Sarov’s men were losing ground. There seemed to be less return fire. Well, in a few more seconds, it wouldn’t matter.

All he had to do was retrieve the plastic card.

He pulled the magnet clear, jumped from the crane, then ran over to the chest. He could see the card, half protruding from the slot where Sarov had inserted it. The lights were still blinking, the numbers spinning. There was less gunfire around him now. Looking over his shoulder, he saw more men in blue edging slowly into the compound, coming in from all sides. He reached down and pulled out the card. The lights on the nuclear bomb went out. The numbers disappeared. He had done it!

“Put it back.”

The words were softly spoken but each one dripped menace. Alex looked up and saw Sarov in front of him. Somehow he must have learned that the compound was under attack and had made his way back. How much time had passed since the two of them had last faced each other? Thirty minutes? An hour? However long it had been, Sarov had changed. He was smaller, shrunken. The light in his eyes had gone out and what little colour there had been in his skin seemed to have become muddied. He had been wounded fighting his way back into the harbour. There was a rip in his jacket and a slowly spreading red stain. His left hand hung useless.

But his right hand was holding a gun.