In that moment Chin-Hwa knew he was fooling himself. All those times he had been brought into the government buildings and asked the same questions again and again. In his expert opinion, would Vortex work? Would it be effective over the range that was being claimed? Once they had their hands on the machinery, would he be able to copy it? Each time he had answered in the same way: the theory of Vortex was sound, but it would be a very difficult device to engineer. Yes, if they managed to engineer it, then the range was realistic. And yes, he would be able to copy it. He didn't really know if he could, but what else could he say?
And he had known, even then, that these shadowy government officials did not want Vortex simply as a deterrent.
They wanted it as an instrument of war.
Chin-Hwa understood how devastating it could be, and as he stared at his father's picture, he knew with a sudden clarity what he had to do. He knew he had to put things right.
He stood up abruptly and walked into the small kitchen. At the back of one of the almost empty cupboards there was a small box. He opened it and removed a thin wad of crumpled notes, money that he had saved over a long period of time in case of an emergency. Really he had been thinking about his mother needing medical care, but this, he realized, was a different kind of emergency. The worst kind of emergency. And if he did nothing to stop it, he would have only himself to blame.
Chin-Hwa walked to the window. It was still raining outside, and as he looked down the twenty storeys of the high-rise building in which he and his mother lived, he saw that the pavements were almost bare.
Almost, except for the one man in a heavy raincoat who was standing on the other side of the road. Standing and watching. Watching and waiting.
Chin-Hwa had become used to being followed. They were clever at it, never sending the same man twice so that he wouldn't recognize his pursuer, but he had become aware of it soon after that first meeting with the government men. Wherever he went there was somebody nearby, as dependable as his own shadow. Following. Watching. Sometimes Chin-Hwa would play games with them, walking down a deserted side street and then stopping to look back. His pursuers would not try to hide. They would just stand there, still and expressionless, then start following him again as soon as he went on his way.
Today, though, he was going to have to lose him.
He stepped into the small bedroom where his mother slept, bed-bound for most of her time now. 'I'm going out,' he said softly, and was relieved to note that she was asleep and so unable to question why he was stepping outside in this rain. He grabbed his one coat that he had to make do with, whatever the weather, then left the flat.
There was only one way out of the apartment block, and as soon as he descended the concrete stairwell and stepped outside, he saw the man on the other side of the road stand up a little straighter, then start to follow him as he walked through the rain towards the tram stop. He took the tram every day — like most North Koreans he was too poor to own a car, and the Pyongyang metro was too unreliable — and was used to waiting at that little tram stop, his shadow never standing more than a few metres away.
By the time the orange and white tram trundled along, Chin-Hwa was soaked to the skin. The doors hissed open and he stepped up into the tram, closely followed by the man in the heavy coat, then shuffled halfway up the carriage to where there was another set of doors. He stood close by them, listening carefully for the telltale hiss that would indicate they were about to shut.
When the hiss came, he slipped outside again.
The doors shut firmly behind him, and as the tram moved off, he caught sight of his pursuer through the window, his expressionless face now marked with anger. Their gaze remained locked until the tram took him out of sight.
He hurried quickly in the other direction, knowing that the tram's next stop was not that far away, and his shadow would return here as soon as possible. But as he pattered down the street he became aware of something else.
Footsteps.
He looked over his shoulder and saw another raincoat-clad man walking about ten metres behind him, clearly trying to keep up with Chin-Hwa's energetic pace. He had seen enough of these guys to know when he was being followed, but there had never been more than one of them before. He felt a sense of rising panic as he realized that the surveillance must have been increased very recently — since this morning, in fact — and he cursed himself for having asked too many questions in the government meeting.
He was followed all the way into the centre of Pyongyang. As he walked he desperately tried to think of a way to lose his shadow. There was no way he could pull the tram trick again; he could head for a metro station, but trains were unlikely to be running as it was not the rush hour. In the end, he headed for the huge white building of Department Store Number 1, one of the capital's biggest shops and a place he would never normally set foot. Maybe, just maybe, he could lose his trail here.
The store was not crowded. His clothes dripped onto the shiny floor as he walked past aisles of goods he could not afford — business suits in the menswear department, wooden machine guns in the toy area. All the while he kept checking over his shoulder; all the while he saw that the man in the heavy raincoat was following.
On a whim, he darted left, past a row of children's clothes that were all of an identical style. He swung round to his right, then to his left again. Ahead of him was a flight of steps. He ran to the stairs and thundered down them, then hurtled through a door and out into the street again where he ran with all the energy he had. As soon as he could make a turn off that road, he did; then he did all he could to lose himself in the unfamiliar streets. If he didn't know where he was, Chin-Hwa reasoned, then nor would his shadow.
Sure enough, when he looked back, there was no sign of him.
Chin-Hwa would pay for this, of that he was sure. Nobody could prove that he had lost his trail on purpose, but that didn't matter in North Korea. He'd be hauled in, questioned, maybe even tortured. Perhaps they would come for his mother. He couldn't think about all that, though. If he did, it would distract him from what he had to do. And he knew what that was.
There was only one Internet cafe in Pyongyang, and that had recently opened. It was never full, however, because the price of half an hour on the computers cost more than most Koreans earned in a month. It was really just for foreign visitors, and to present the image of North Korea being a modern state, even though only a tiny fraction of the population had ever used it.
When Chin-Hwa walked in, he attracted strange looks; they became even stranger when he pulled his wad of damp notes from out of his sopping pockets and handed them to the man in charge, who counted them out carefully. Warily, he was shown to a computer terminal. 'Half an hour,' he was told curtly.
Chin-Hwa nodded. Half an hour to save the world. It didn't seem like long. He put his fingers to the keyboard and started typing.
Chapter Thirteen
The cell in which Ben, Annie and Joseph found themselves was empty apart from a flickering strip light on the ceiling and a metal plate by heavy electric doors that had hissed firmly shut when they had been unceremoniously thrown in here. Flight Lieutenant Johnson had at least removed the handcuffs that were by now cutting into the skin around their wrists, but then he had left them without a word.
There were no windows in the cell — just concrete walls — and in the weak artificial light it was impossible to judge how much time was passing. Joseph had walked to the far corner of the cell, sat down and huddled his arms around his knees; Annie, on the other hand, was pacing up and down, fuming. 'What's going on here?' she demanded of nobody in particular. 'I don't understand. What's Vortex? Why are we being held?' She turned to Ben and pointed a slightly threatening finger at him. 'If you try and tell me that these people are doing this with the full knowledge of the RAF—'