After Tord had finished, Bellman sighed and raised his head.

Tord noticed there was a new look to his eyes. Hard and defiant.

‘I apologise,’ the section head said. ‘On behalf of myself, my profession and the police force. I apologise for not having disposed of the bedbug.’

Bellman must have been saying that to himself, Tord thought, and not to him, a pilot who had been smuggling eight kilos of heroin a week.

‘I appreciate that you’re concerned,’ Bellman said. ‘I wish I could say you have nothing to fear. But bitter experience tells me that when this kind of corruption is exposed it goes down a lot further than one individual.’

‘I understand.’

‘Have you told anyone else about this?’

‘No.’

‘Does anyone know you are here and talking to me?’

‘No, no one.’

‘No one at all?’

Tord looked at him. Smiled wryly without saying what he was thinking: who was there to tell?

‘OK,’ Bellman said. ‘This is an important, serious and extremely delicate matter you’ve brought to my attention. I’ll have to proceed very warily so as not to warn those who must not be warned. That means I’ll have to take the matter higher. You know, I ought to put you on remand for what you have told me, but imprisonment now could expose both you and us. So until the situation has been clarified you should go home and stay there. Do you understand? Don’t tell anyone about this meeting, don’t go outdoors, don’t open the door to strangers, don’t answer phone calls from unfamiliar numbers.’

Tord nodded slowly. ‘How long will it take?’

‘Three days max.’

‘Roger that.’

Bellman appeared to be about to say something, but stopped and hesitated before finally deciding.

‘This is something I’ve never been able to understand,’ he said. ‘That some people are willing to destroy the lives of others for money. Well, perhaps if you’re a poor Afghan peasant… But a Norwegian with the salary of a chief pilot…’

Tord Schultz met his eyes. He had prepared himself for this; it almost felt like relief when it came.

‘Nevertheless, coming here of your own free will and laying your cards on the table is brave. I know what you’re risking. Life won’t be easy from now on, Schultz.’

With that, the head of Orgkrim stood up and proffered his hand. And the same thought went through Tord’s mind as when he had seen him approaching in reception: Mikael Bellman was the perfect height for a fighter pilot.

As Tord Schultz was leaving Police HQ, Harry Hole was ringing Rakel’s doorbell. She opened up, wearing a dressing gown and narrow slits for eyes. She yawned.

‘I’ll look better later in the day,’ she said.

‘Nice that one of us will,’ Harry said, stepping inside.

‘Good luck,’ she said, standing in front of the living-room table piled with documents. ‘It’s all there. Case reports. Photos. Newspaper cuttings. Witness statements. He’s thorough. I have to go to work.’

By the time the door had slammed behind her Harry had brewed up his first cup of coffee and made a start.

After reading for three hours he had to have a break to fight the despondency stealing over him. He took the cup and stood by the kitchen window. Told himself he was here to question guilt, not to confirm innocence. Doubt was enough. And yet. The evidence was unambiguous. And all his years of experience as a murder investigator worked against him: things were surprisingly often exactly as they looked.

After three more hours the conclusion was the same. There was nothing in the documents that hinted at a different explanation. That didn’t mean there wasn’t one, but it wasn’t here, he told himself.

He left before Rakel came home, telling himself he had jet lag, he had to sleep. But he knew why. He couldn’t bring himself to say that from what he had read it was harder to cling to a doubt, the doubt that was the way, the truth, the life and the only hope of redemption.

So he grabbed his coat and left. Walked all the way from Holmenkollen, past Ris, over Sogn and Ulleval and Boltelokka to Schroder’s. Considered going in but decided against it. Headed east instead, over the river to Toyen.

And when he pushed open the door to the Watchtower, daylight had already started to fade. Everything was as he remembered. Pale walls, pale cafe decor, large windows that let in the maximum amount of light. And in this light the afternoon clientele sat around the tables with coffee and sandwiches. Some customers hung their heads over plates as if they had just reached the finishing line after a fifty-kilometre race, some carried on staccato conversations in impenetrable junkie-speak, others you wouldn’t have been surprised to see drinking an espresso among the bourgeois pram armada at United Bakeries.

Some had been provided with new second-hand clothes they either kept in plastic bags or were wearing. Others looked like insurance agents or provincial schoolmistresses.

Harry headed for the counter, and a rotund, smiling girl in a Salvation Army hoodie offered him free filter coffee and wholewheat bread with brown cheese.

‘Not today, thank you. Is Martine here?’

‘She’s working in the clinic.’

The girl pointed her finger at the ceiling and the Salvation Army first-aid room above.

‘But she should be finished-’

‘Harry!’

He turned.

Martine Eckhoff was as small as ever. The smiling kitten face had the same disproportionately broad mouth and a nose that was no more than a knoll in her tiny face. And her pupils looked as if they had run to the edge of the brown irises, forming the shape of a keyhole. She had once explained to him it was congenital and known as iris coloboma.

Martine stretched up and gave him a long, lingering hug. And when she had finished she still would not let go of him, but held both of his hands while looking up at him. He saw a shadow flit across her smile when she saw the scar on his face.

‘How… how thin you are.’

Harry laughed. ‘Thank you. But while I’ve got thinner-’

‘I know,’ Martine cried. ‘I’ve got fatter. Everyone’s got fatter, though, Harry. Except you. By the way, I do have an excuse for being fat…’

She patted her stomach where the black lambswool jumper was stretched to its limit.

‘Mm. Did Rikard do this to you?’

She laughed and nodded with enthusiasm. Her face was red, the heat was coming off her like a plasma screen.

They walked over to the only free table. Harry sat down and watched the black hemisphere of a stomach trying to lower itself onto a chair. It looked incongruous against the backdrop of capsized lives and apathetic hopelessness.

‘Gusto,’ he said. ‘Do you know anything about the case?’

She heaved a deep sigh. ‘Of course. Everyone here does. He was part of the community. He didn’t come here often, but we saw him now and then. The girls working here were in love with him, every last one. He was so good-looking!’

‘What about Oleg, the guy who it’s claimed killed him?’

‘He came sometimes, with a girl.’ She frowned. ‘Claimed? Is there some doubt about it then?’

‘That’s what I’m trying to establish. A girl you say?’

‘Lovely, but a wan little thing. Ingunn? Iriam?’ She turned to the counter. ‘Hey! What’s the name of Gusto’s foster-sister?’ And before anyone had a chance to answer she answered herself: ‘Irene!’

‘Red hair and freckles?’ Harry asked.

‘She was so pale that if it hadn’t been for her hair she would have been invisible. I mean that. In the end the sun shone right through her.’

‘In the end?’

‘Yes, we’ve just been speaking about that. It’s a while since she’s been here. I’ve asked lots of the people who come here if she’s left town or what, but no one seems to know where she is.’

‘Do you remember anything happening around the time the murder took place?’

‘Nothing special except for that particular evening. I heard the police sirens and knew they were probably for some of our young parishioners, when one of your colleagues here received a phone call and stormed out.’