And then the car started forward and he let out a sigh of relief. He could imagine the barrier rising to let them through. The Casa de Oro would be behind them now. How far was it to Santiago? How would he know for sure when they were there?

The car stopped again.

The boot opened.

Cruel sunlight came rushing in. Alex blinked, putting a hand up to protect himself.

“Get out!” a voice said, in English.

Alex climbed out, soaking wet with his own perspiration. Sarov was standing in front of him. Conrad was next to him, holding an automatic pistol, not even trying to hide the pleasure in his eyes. Alex looked around. The car hadn’t even left the compound. It had simply rolled forward and turned round. That had been the movement he had felt. There were two guards watching him, their faces blank. One of them was holding a device that looked a little like a megaphone, the sort teachers used at sports days. It was connected by a long wire to a box just inside the building.

“If you had wanted to visit Santiago, you had only to ask,” Sarov said. “But I don’t think you wanted to visit the city. I think you were running away.”

Alex said nothing.

“Where is Juan?” Sarov asked.

Alex still didn’t speak.

Sarov gazed at the boy. He seemed pained, as if he didn’t understand why Alex had disobeyed him and didn’t know quite what to do. “You disappoint me, Alex,” he said, at length. “You were down at the cave. You saw the extent of my security arrangements there. Did you really think for a single minute that I would allow a car to drive in or out of this compound without knowing exactly who or what was inside?”

He suddenly reached out and took the megaphone device from the guard. He pointed it at Alex’s chest and pressed a button. At once, Alex heard a thumping sound that echoed through the air. It took him a second or two to realize that it was his own heart, amplified and transmitted out of speaker system hidden somewhere inside the guard house.

“The car was scanned at the barrier,” Sarov explained. “Every car is scanned at the barrier, using the machine I am holding now. A sophisticated sensor. This is what the guard heard. You can hear it now.”

Thud… thud… thud…

Alex listened to his own heart.

Sarov was suddenly angry. Nothing in his face had changed, but his pale blue eyes had turned to ice and there was a dreadful deadness about him, as if his own life had suddenly been drained away. “Do you not remember what I told you?” he whispered. “If you tried to escape, you would be shot. Conrad very much wishes to shoot you. He believes I am a fool to have you here as my guest. He is right.”

Conrad stepped forward, the gun raised.

Thud… thud… thud… thud…

Alex’s heart was the animal inside him, beyond his control, responding to the fear he felt. There was nothing he could do to hide it. The heart was beating louder and faster, echoing out of the speakers.

“I don’t understand you, Alex. Have you no idea what I’m offering you? Did you not hear a word that I said? I offer you my protection and you make an enemy of me! I want you to be my son, but you force me to destroy you instead.”

Conrad touched the gun against Alex’s heart.

Thudthudthudthudthudthudthud…

“Listen to the sound of your own terror. Do you hear it? And when you hear silence-it could be just a few seconds from now-that is when you will know you have died.”

Conrad’s finger tightened on the trigger.

Then Sarov turned off the sensor.

The heartbeat stopped.

Alex felt as if he had been shot. The sudden silence hit him like a hammer blow. Like a bullet from a gun. He fell to his knees, hollowed out, barely able to breathe. He knelt there in the dust, his hands at his sides. He no longer had the strength to stand up. Sarov looked at him and now there was only sadness in his face.

“He has learned his lesson,” he said. “Take him back to his room.”

He put down the sensor and, turning his back on the still kneeling boy, slowly climbed back into the car.

THE NUCLEAR DUSTBIN

At seven o’clock that evening, the door of Alex’s cell opened and Conrad stood there, wearing a suit and tie. The smart clothes made his half-bald head, ruined face and red, twitching eye even uglier than usual. He reminded Alex of an expensive Guy Fawkes on bonfire night.

“You are invited to dinner,” Conrad said.

“No thanks, Conrad,” Alex replied. “I’m not hungry.”

“The invitation is not one you may refuse.” He tilted a hand to look at his watch. The hand had been inaccurately joined to the wrist. He had to move it a long way to see the watch face. “You have five minutes,” he said. “You are expected to dress formally.”

“I’m afraid I left my dinner jacket in England.”

Conrad ignored him and closed the door.

Alex swung his legs off the bunk where he had been lying. He had been in the cell ever since his capture at the gate, vaguely wondering what was going to happen next. An invitation to dinner had been the last thing he’d expected. There had been no sign of Juan when he got back. Presumably the young guard had been reprimanded for his failure to watch over Alex and sent home. Or shot. Alex was beginning to realize that the people at the Casa de Oro meant business. He had no idea what Sarov had in mind for him this evening but he knew that the last time they had met, Alex had only just managed to escape with his life. He resembled the sixteen-year-old Vladimir, Sarov’s lost son. Sarov must still have some fantasy about adopting him. Otherwise, he would now be dead.

He decided that, all in all, it would be wise to play along with this invitation to dinner. At the very least it might allow him to find out a little more about what was going on. Would the meal be filmed, he wondered? And if so, to what use would the film be put? Alex pulled a clean shirt and a pair of black Evisu trousers out of his case. He remembered that the mad headmaster, Dr Grief, had used hidden cameras at the Point Blanc academy to spy on the boys who were there. But this was different. The film that he had seen in the editing suite was being cut, pieced together, manipulated. It was going to be used for something. But what?

Conrad returned exactly five minutes later. Alex was ready for him. Once again he was escorted out of the slave house and up the steps to the main house. Inside, he heard the sound of classical music. He reached the courtyard and saw a trio-two elderly violinists and a plump lady with a cello-playing what sounded like Bach, the fountain tinkling softly behind them. There were about a dozen people gathered there, drinking champagne and eating canapes which were being carried round on silver trays by white-aproned waitresses. The four bodyguards were standing together in a tight, watchful circle. Another six men from the Russian delegation were chatting to the girls from the swimming pool, who glittered in sequins and jewellery.

The president himself was talking to Sarov, a glass in one hand and a huge cigar in the other. Sarov said something and he laughed out loud, smoke billowing from his lips. Sarov noticed Alex arrive and smiled.

“Ah, Alex! There you are! What will you have to drink?”

It seemed that the events of the afternoon had been forgotten. At least, they weren’t to be mentioned again. Alex asked for a fresh orange juice and it was brought at once.

“I’m glad you’re here, Alex,” Sarov said. “I didn’t want to start without you.”

Alex remembered something Sarov had said at the swimming pool. Something about a surprise. He was beginning to have bad feelings about this dinner, but without knowing why.

The trio finished a piece of music and there was a light smattering of applause. Then a gong sounded and the guests moved into the dining room. This was the same room where Alex and Sarov had eaten breakfast, but it had been transformed for the banquet. The glasses were crystal, the plates brilliant white porcelain, the knives and forks polished till they gleamed. The tablecloth, also white, looked brand new. There were thirteen places for dinner-six on each side and one at the head. Alex noted the number with a further sense of unease. Thirteen for dinner. Unlucky.