Richard was surprised but delighted with this idea, but before he could express his delight she added: “As a customer.”

Karl Marx was right. In late capitalism, every human relationship would be based on money. Now that the idea was in Richard’s head, it was pretty much irresistible. The idea of Melanie, that is, not the idea of Karl Marx being cynically correct.

So it seemed Melanie had simply taken the opportunity to advertise herself to a prime potential customer in return for helping Mitchell. Fair enough. He wondered if he’d paid for her services back in Helsinki. He couldn’t remember handing over any money, but then he could hardly remember anything about that night. So maybe that was the explanation, and it hadn’t been romantic infatuation after all, which was a shame. But he wouldn’t mind seeing her again anyway, even on those terms.

Whatever the case, Melanie would have to wait until later. In fact, she might need to wait until he could afford a Miu Miu bag or two. She seemed to imply she thought he could be as good a customer as Mitchell had been in that respect. Unfortunately for her, that was most unlikely; he had a hard enough job paying his normal bills, never mind trying to pay for an expensive ‘girlfriend’.

Anyway, right now, all he wanted to do was open the envelope. He watched Melanie walk off, back in the direction of Knightsbridge. For some reason, he wanted to make sure she wouldn’t see him opening the envelope. That act was going to be too private. It was possibly even dangerous. By the time he judged she was far enough away, he was itching to get it open and have done with it.

Some burka-clad women were waddling towards him, and skaters suddenly appeared and sped off. He would need to head further into the park, into the trees. There he would be alone. Alone, and therefore vulnerable in a different way.

He began walking further into the centre of the park, looking for a quiet bench. He wanted to be sure no one was watching. He also felt he had to sit down to open the envelope. He was so nervous about it; it was worse than getting exam results. He could feel his heart beating. At last he found a quiet park bench.

The burka-clad women were well in the distance now, being overtaken by some joggers. He sat down. With trembling hands, he ended up accidentally ripping the envelope open so clumsily that it burst apart, sending a flash-drive and a smaller envelope spinning into the air. Fortunately, they were both white and easily visible. He scrabbled to retrieve them, quickly and anxiously checking the ground at his feet to make sure nothing else had dropped out. Nothing had.

He stared at the small envelope, almost as though it was beyond belief. Something that was impossible had finally happened.

The word was clearly marked on the small envelope. The word he had been waiting for. There it was… ZIMA!

“Zima” (in fact, ‘зима’ in Cyrillic) was Russian for “winter”.

It was too good to be true! A wave of relief swept over him, as though he had been trapped, but the trap had sprung open, releasing him. He took a deep breath and let it out slowly. He had never felt such a feeling of elation and freedom. Soon the whole world would be free!

He opened the second envelope, but it was almost as though the second envelope was reversing the spell the first had cast. He was already becoming aware that, in reality, the word Zima had not liberated him; not yet. Instead he would be moving, in some intangible way, into a world of shadows and danger.