Nobody spoke. Oliver sat staring at his feet in the darkness. The Mercedes came to a halt, and the men pulled him roughly out of the car.

They were at the side of a lake. The sleet had stopped, and pale moonlight shone down across the water’s frozen surface. The village lights had come back on and glimmered in the distance.

All four men stepped out of the car. They hauled Oliver out too and slammed him against the side. One of his arms was twisted up painfully behind his back and someone kicked his feet apart. He felt expert hands frisking him.

He remembered the phone just a second before they found it in his jacket pocket. Fear rose within him as he realized that in his haste he hadn’t deleted the video-clip.

The men hauled Oliver off the cold metal of the car and he saw the pistol glint in the moonlight. The man holding it was tall, about six-four, and heavily built. His eyes were impassive, and below the line of his sandy crew-cut one of his earlobes was twisted and mangled.

Oliver stared at him. ‘I’ve seen you before.’

‘Walk.’ The man with the gun motioned towards the lake.

Oliver stepped through the rushes and placed one foot on the ice. He walked out across the lake. Ten yards, fifteen. The ice was thick and solid underneath him. Every nerve in his body was screaming, his heart thudding in the base of his throat. There had to be a way out of this.

But there wasn’t, and he knew it. He walked on, slipping on the hard, smooth ice. His tuxedo was soaked with sweat.

He’d walked about thirty yards from the lakeside when he heard the gunshot. He flinched-but there was no impact, no pain. He felt the strike of the bullet resonate through the ice under his feet.

That was when he realized they weren’t going to shoot him.

He watched helplessly as the blue fissure spread from the bullet-hole in the ice and ran past his feet with a slow, ripping crackle. He glanced back at the lakeside. Saw another man reach inside the car, come out with a stubby submachine gun and hand it to the tall man.

Oliver closed his eyes.

The tall man had a wide grin on his face as he held the weapon tightly at the hip and squeezed off a short fully-automatic blast at Oliver’s feet.

The ice was churned into flying splinters. A spider’s web of cracks appeared all around him. There was nowhere to run. The frozen surface beneath his feet groaned, and then gave way.

The stunning shock of the icy water drove the breath out of him. He clawed at the ragged edge of the hole, but lost his grip. The water closed over his head, filled his nose and mouth, pressure roaring in his ears as he kicked and struggled. In the blackness, he knew he’d slipped under the ice sheet. His fingers slithered helplessly against its underside as he drifted away from the hole. Bubbles streamed from his lips. There was no way up, no way back.

He held his breath, and fought and kicked against the ice until he couldn’t hold it any longer. His body convulsed as the freezing water poured into his lungs.

And as he died, he thought he could hear the killers laughing.

Southern Turkey

Eleven months later

The two men playing cards at the kitchen table heard the sudden roar of an engine and looked up just in time to see the pickup truck looming in the patio windows.

Then it hit. Glass shards, splinters of timber and shattered brickwork exploded into the room. The truck lurched to a halt with its front wheels and its rust-pitted, plaster-covered bonnet protruding through the ragged hole in the wall.

The men dived for cover, scattering beer bottles, but they were too slow. The truck door flew open. The man who stepped out from behind the dusty windscreen was dressed all in black. Black combat jacket, black ski-mask, black gloves. He watched for a moment as the card players backed away across the room. Then he drew the silenced 9mm Browning from its holster and shot them both twice in the chest, rapid-fire. The bodies slumped to the floor. A spent case tinkled across the tiles. He walked over to the nearest body and put a bullet in its head. Then the other.

The man in black had been observing the secluded house for three days, taking his time, well concealed in the trees beyond the fence. He knew the routine. He knew that round the back of the house was a garage block that housed a rusted Ford pickup with the keys left in it, and that he could slip over the wall and reach it without being seen from the rear windows where the guys usually sat, playing cards and drinking beer.

He also knew where the girl was.

The dust was beginning to settle in the wrecked kitchen. When he’d made sure the two men were permanently down, the intruder replaced the warm Browning in its holster and made his way through the house. He looked at his watch. Less than two minutes since he’d come over the wall. Things were going according to plan.

The girl’s door was flimsy and buckled off its hinges at the third kick. By then, he could hear her screaming inside the room. He burst in. She was curled up at the far end of the bed, sheets drawn over her, terror in her eyes. He knew that she had just turned thirteen.

The man walked over to her and paused at the edge of the bed. She screamed harder. He wondered whether he would have to give her one of the tranquillizers he always carried with him. He took off the ski-mask, revealing his lean, tanned face and thick blond hair. He put out his hand to her. ‘Come with me,’ he said softly.

She stopped screaming and looked up at him hesitantly. The other men had hard eyes. This man was different.

He reached into his jacket and showed her the photo of him together with her parents. She hadn’t seen them for a long time. ‘It’s OK,’ he said. ‘My name’s Ben, and I’m here to help you. Your family sent me, Catherine. They’re waiting. I’ll take you to them.’

Her cheeks were moist with tears. ‘Are you a policeman?’ she asked in a low voice.

‘No,’ he said. ‘Just a friend.’

He reached his hand out further, gently, and she let him take her arm to guide her to her feet. Her arm felt wasted under the grubby blouse she was wearing. She didn’t protest as he led her out of the room, and she didn’t react at the sight of the two dead men lying on the kitchen floor.

Back outside, she blinked at the sunlight. It had been a while since she’d last left the confines of the house. She was unsteady on her feet, and Ben carried her to the Land Rover he’d left parked fifty yards from the house, hidden in a clump of bushes. He opened the passenger door and put the girl into the seat. She was shivering. There was a blanket in the back and he covered her with it.

He checked his watch again. Five minutes before the other three men would be back, if they kept to their routine. ‘Let’s go,’ he muttered, and walked round to the driver’s side.

The girl said something in reply, but her voice was weak.

‘What?’ he said.

‘What about Maria?’ she repeated, looking up at him.

His eyes narrowed. ‘Maria?’

Catherine pointed back at the house. ‘She’s still in there.’

‘Is Maria a girl like you? They’re holding her?’

Catherine nodded solemnly.

He made a decision. ‘OK, I need you to stay put for a minute. Can I trust you?’

She nodded again.

‘Where is she?’

In three minutes he’d found where they were keeping Maria. To get there he had to walk through a dingy room where some cameras were set up on tripods around a rumpled single bed, with cheap lighting equipment dumped in a corner and a TV and video sitting on a squat table. The VCR had been left running, the sound off. He paused and looked at the images, then realized what he was seeing. He recognized one of the men he’d shot earlier. The naked, writhing girl in the crudely shot film was no more than eleven or twelve.