Taking a pair of scissors, he cut the bug in two and flicked the halves into his bin.

“I never knew you were so eloquent.”

“And all without the aid of vodka.” Petrovitch sat down again and threw the now-inert wand into the clear space on his desk. “Now where was I?”

“Cheating and stealing,” she said.

“Yeah. In the life I had before, I stole some money. It’s a little more complicated than that, though. My employer—my patron is a better word—was a man called Boris. He and his gang kidnapped rich people and ransomed them. They used me for technical support and in return I got books and somewhere warm and lit to read them. It was terrifying for the hostages, but it was fine for me. Fine, while the companies and trusts these people worked for paid up. Boris was okay as brutal thugs went: he kept his word. Probably the only good thing he taught me.”

Pif’s eyes were growing larger. “Sam!”

“It was St. Petersburg in the aftermath of Armageddon. I needed to be able to do something where having a weak heart wasn’t going to be a problem. My father died of radiation poisoning early on, and I needed not to be a burden on my mother and sister. I could even help out occasionally. If things went well, Boris was generous. Generous enough to keep the police sweet and ensure that no one ever betrayed him. Then it all started to go wrong. Some companies wouldn’t pay up anymore. Boris killed hostages and threw bodies in the river. Not a good time.”

“I’m going to make some coffee,” announced Pif. “I’m not sure I want to hear the end of this.”

“For me? Please. I can promise you it gets better.”

She looked at him on her way to the kettle. “Why now, Sam?”

“Because if I die, this story dies with me.”

“Go on.”

“There was this man. An American called Dalton. Rich, didn’t take much care. Boris took him, asked for ten million U.S., I think. Dalton’s company had a no-pay policy, so he was going to die when the money didn’t turn up.” Petrovitch looked up at the ceiling and blew out a thin stream of air. “I saved him.”

“Okay, that’s a good thing.”

“I took all his savings in return for keeping him alive.”

“That’s slightly more morally ambivalent.”

“And of course, I cheated Boris too. Samuil Petrovitch is a construct, the man I wanted to become. He’s three years older than I am, for a start. I don’t have a degree. I don’t have a scholarship. The money I’m using to fund my extravagant lifestyle is the money I stole from Dalton.”

Pif, her back to Petrovitch, poured boiling water on the coffee granules. “So what happened to him? The American?”

“He went home. He got married. He has kids, two of them, both genetically enhanced. He got his new life. And I got mine. I think, under the circumstances, we both got a good deal.”

The spoon went round and round the mug, making little scraping noises as it went. “You’ve never been to university.”

“Not until this one.”

“So how come you’re so brilliant at what you do?”

Petrovitch took it as a compliment. “Raw natural ability. I can’t claim credit for that. But I did a lot of reading—more than a lot. Not just magnetohydrodynamics, but across the field. There are problems that I find solutions for in the strangest places. You can’t know it all, but it helps if you know where to look.”

She brought both coffees over, and put one mug into his grateful hands. “None of this explains why you’re so willing to throw it all away.”

“Doesn’t it go some way to explain why I hold it lightly, though? The last few years have been a gift. I didn’t deserve this, this peace I’ve had, the space to do what I want without having to worry about money or guns. It’s over now. Even if Hijo and his assassins don’t get me, Chain will end up waving a pair of handcuffs and an extradition order at me.”

“It doesn’t have to be over. You can run again.”

“It was over the moment I grabbed Sonja Oshicora’s hand. The moment, I suppose, when I decided to stop running and spit in the face of destiny. This is meant to be, all the crap that’s happening. That I managed to hold it off for so long is a miracle in itself.” Petrovitch leaned over his coffee, strong, hot, bitter: she knew how he liked it. “Now’s the time to make a stand, no matter how suicidal it is.”

Pif sighed. She wasn’t convinced. “Is there no one who’ll miss you? You said you had a sister, a mother.”

“Not contacting them ever again was the price I had to pay for Boris leaving them alone. I never told them what I was doing, and they never asked. I disappeared. They thought I was dead, and I’ve given them no reason to suppose otherwise. Apart from that, no. I’ve made no friends, had no girlfriends, I’ve maybe a handful of acquaintances. No one’s going to miss me.” He took a mouthful of coffee, almost too hot to drink, and thought of his last sight of Sister Madeleine. “No one.”

“Then how are you different from Inspector Chain?” Pif balanced her mug on a rough pile of his lab notes and knelt down in front of the desk. She rested her elbows on the edge and cradled her face in her hands.

“He was given the responsibility and powers of a policeman. What’s he done with them? I got given the single opportunity to save Dalton, and what did I do? That he’s walking around, living and breathing, spawning little Reconstructionists, is down to me. No one else. So yeah. I’m different from that lazy sooksin.”

“Is this what it’s like, then?” she said, eyes closed, dreaming. “People like us, we think differently, don’t we? We are different. We do all the things that others do. We go out to parties and concerts, we go to conferences and drink and talk, we play music and games and we laugh and cry. But when it comes down to it, we don’t actually need anyone else. We’re happy doing what we do and having obligations interferes with that. Does that make us selfish, or something else?”

“I don’t know. To them, I guess it is selfish. Me? I just have such a monstrous sense of self, I don’t need to feel love. I don’t even feel lonely.” He watched Pif’s hair beads swinging slightly in time with her breathing. “Sometimes I wonder what it might be like. To be with someone, well, who isn’t me. And sometimes I think we don’t even need ourselves. What’s most important is to find out whether we’re right or not.”

“So what are you going to do?”

“I’ve run out of places to go. I can’t go home. I can’t travel on the tube with the guns. I don’t think I can walk to Regent’s Park: it’s madness on the streets today. And I still don’t think any of that was my fault.” Petrovitch swilled his coffee around inside his mug and watched the play of light against the black surface. “It’s against the rules, but I’ll camp down here tonight and meet Marchenkho in the morning.”

“I’ve got a better idea,” said Pif. “Come back to my room. I’ll cook something. We’ll break open a bottle of something pretending to be wine. We can talk about work and play computer games until it’s stupid late, and you can crash out on the couch. Once I’ve done some tidying up, that is. I’m not used to guests.”

Petrovitch looked up. “That would be… that would be nice. You have remembered that Hijo is trying to kill me?”

“Let him come. There are paycops on the door, and if he bribes them, well, we’re ready.”

“We?”

She got to her feet and pulled the Jericho out of her bag. Then in a few deft moves, she’d stripped it down to its component parts. “You see,” she said, “where I grew up, in the expensive part of Lagos, we had to protect ourselves from people like you.”

She reassembled the gun just as efficiently and, when she was done, she assumed a shooter’s stance; legs apart, arms braced, good eye over the sights.

“I wasn’t expecting that,” said Petrovitch.

“And neither will they.” She flicked the safety catch on and dropped the gun back in her bag. She smiled.