The paramedics took him from her, and laid him efficiently on a stretcher inside the van. He watched as they attacked his shirt with scissors and pasted cold electrodes to his skinny chest. It was only when they tried to put a mask over his face that he rebelled and turned his face away.

“The nun. Where is she?”

She climbed up and crouched down. “What is it?”

If she’d been expecting a message for someone or a death-bed confession, she was going to be disappointed. “My bag.”

“Your what?”

“My bag. Courier bag.”

“It’s back in the church.” She pulled back the side of her veil so she could press her ear close to his mouth. “Is there something important in it?”

“Hardware. Cost me a small fortune and I’ve not even turned it on yet.”

She sat back. “A computer? Your heart’s about to fail and you’re worried about a shiny new computer?”

“Look after it for me.”

“Petrovitch,” she said, “you, you geek.”

“Sister,” said the paramedic who was wincing at the vital signs on his handheld screen. “In or out, but we’re moving.”

She made to leave, but ended up reaching out of the cabin and pulling the doors shut, trapping herself inside. “Just drive,” she muttered, and sat awkwardly in a fold-down seat that wasn’t anywhere near her size. She pulled her veil straight and reached for her rosary to compose herself.

Sister Madeleine watched Petrovitch flat-line three times in the ten minutes it took to get him to the hospital, and each time he came back to life again he searched the interior of the ambulance for her.

Some of the time, he was thinking about his beautiful piece of bespoke kit, lying untended on a pew in a city-center church where anyone could just walk in and take it.

But part of him wondered what she was thinking, and he couldn’t work that out at all.

It involved less surgery and more coding. No one cut him wide open, which he was grateful for. The chip that was supposed to control his errant heart was pulled bloodily out through a hole, and a new one slotted into place. He was kept conscious throughout.

The morphine and exhaustion made him drowsy though, and at some point when they were sewing up the access wound with short, blunt tugs of black thread, he allowed himself the luxury of falling asleep.

He dreamed: cold snow, cold wind, crystal-black nights and needle-bright stars. He dreamed of ribbons of auroral color above the blank skyline, of the Soviet murals that decorated the foyers of the underground. He dreamed of good vodka and good friends.

When he woke up, he found that he’d left all that behind and exchanged it for a pale cream room with hospital bed, polarizing filters on the window and an amazonian nun in the corner. Perhaps the nun was optional; then again, for one to come as standard made as much sense as anything in his life ever did.

“How long?” he asked.

“Hour, maybe,” she said. She stood by his bed and looked around. “This must cost a fortune.”

“More than my modest insurance could afford.” Petrovitch pushed himself up with his hands and accepted the automatic movement of his pillows. Sister Madeleine looked down to see what her hands were doing—shaping and plumping—and she consciously stopped herself.

“So?”

Petrovitch leaned back. He could feel the tightness in his chest, but no pain. That was good. “Miss Sonja wanted to know who I was. The only way she could do that was to pick up the tab on my hospital bill. It’ll be no more than small change for someone like her, and she’ll consider herself clever because she’s found out who I am.”

Sister Madeleine shrugged. “You got something out of it too.”

“Yeah. Why do you think I didn’t tell her my name?”

She saw his sly smile. “You were dying, and you saw the opportunity to get a room upgrade?”

“And a private ambulance. I didn’t need her gratitude, I needed her influence. And look: I’m still alive.”

Her eyes grew large. “That’s, that’s…”

“What?” Petrovitch was nonplussed by her reaction. “Just because you didn’t work it out.”

“Why? Why would someone like you want to help someone like her?” She put her hands on her hips and waited for Petrovitch to answer. When he didn’t, she said: “You know what? I don’t care. I haven’t got the energy to waste on it. You know where to find me if you want your little box of tricks back.”

She strode to the door, the second time that day a pretty woman had turned her back on him and walked away.

“I don’t,” he said. “I don’t know where to find you. I wasn’t aware of where I was for the last five minutes or so of the chase.”

She faced the closed door. “So you want me to tell you? What if I don’t? What then?”

“I’ll work it out. It can’t be that difficult. Five minutes, maybe. Ten, then—tops. All I want is my bag back. Really.” He had no idea why he was having this conversation. “Sister?”

“Saint Joseph of Arimathea, Edgware Road.” She twisted the doorknob, and the door swung aside.

“Sister?”

“What?”

He thought about mentioning that she had nearly suffocated him with that stupid head-dress of hers, and for once found that sarcasm died on his tongue. “Thank you. I’m grateful.”

She shrugged again. “Doing good things is in the job description, Petrovitch.” She looked down at the patient, crumpled man sitting across the corridor from her. “Police are here.”

She left, robes billowing out behind her. Neither man, the one in the bed, the one in the chair, had the authority to stop her.

4

Eventually, having watched the sister stamp angrily down to the first corner and disappear, the policeman got up wearily from his chair and wandered in. He ignored Petrovitch at first, and walked around, touching the furnishings, playing with the window controls, pouring himself a glass of water from the jug on the bedside table.

Petrovitch looked over the top of his glasses at the man as he drank, one gulp, two gulps, three.

“Do you mind if I sit down?” the man asked, wiping his mouth on his jacket sleeve, then sat down anyway without waiting for an answer. “There’s always too much standing up in this job.”

He patted his pockets for his warrant card, and passed it over to Petrovitch with an air of distraction: he was already looking for something else in a different place.

Petrovitch inspected the card: Chain, Henry—Detective Inspector, Metropolitan Police. The hologram looked twenty years out of date, because the Chain in front of him had far more wrinkles and much less hair. His head was flaring under the lights, the thin strands dotted haphazardly over his scalp illuminated from below as well as above.

Petrovitch passed the card back, and Chain opened the cover of his police handheld. The detective chewed the stylus for a moment, then pecked at an icon.

“Right then,” said Chain, and interrupted himself with a volley of wet coughing. “Sorry. It’s the air. I’ll start again: Petrovitch, Samuil. Twenty-two, citizen of the Russian Federation, here on a university scholarship. Address, three-four-one-five, Clapham Transit A. You will stop me if I mess up here? I know these things are supposed to be accurate, but you know what it’s like.” He paused. “You do know what it’s like, don’t you?”

Petrovitch cleared his throat. “I know.”

“Your English good? Don’t need a translator or a dictionary?”

“I’m fluent.”

“This is just an interview, you know. You haven’t done anything wrong. I’m just asking a few questions. If you think you might need a lawyer, do say.” Chain coughed again, an episode that left him breathless. He twisted round in his chair and poured himself some more water. “Nice room.”

Petrovitch nodded slowly. Either the man was brilliant or a buffoon. Only time would tell which.