‘So,’ Moller said, supporting his chin on his hands. ‘You can remember something you can’t quite remember, but you think it’s important?’

Harry rubbed his face hard with both hands.

‘When you go to the scene of a crime, you’re concentrating so hard that the most peripheral things your brain takes in are much more than you can work through. They simply remain there until something happens, until something new crops up, one piece of the jigsaw fits another, but then you can’t remember where you got the first piece from. Your gut feeling tells you that it’s important, though. How does that sound?’

‘Like a psychosis,’ Aune said, yawning.

The other three looked at him.

‘Can you not at least smile when I’m being funny?’ he said. ‘Harry, it sounds like an absolutely normal working brain. Nothing to be frightened of.’

‘I think there are four brains here that have done enough for one day,’ Moller said and got up.

At that moment the telephone in front of him rang.

‘Moller here… Just a minute.’

He passed the telephone over to Waaler, who took it and placed it against his ear.

‘Yes?’

There was a scraping of chairs, but Waaler motioned with his hand that they should wait.

‘Great,’ he said, hanging up.

The others turned to him with renewed interest.

‘A witness has called in. She saw a cyclist coming out of an apartment block in Ullevalsveien near Our Saviour’s Cemetery on the Friday afternoon when Camilla Loen was killed. She remembered it because she thought it was so peculiar that he was wearing a white cloth round his mouth. The courier who nipped off for a beer in St Hanshaugen wasn’t wearing one.’

‘And?’

‘She didn’t know which number it was in Ullevalsveien, but Skarre drove her past. She pointed out the building and it was Camilla Loen’s.’

Moller slammed his hand down hard on the surface of the table.

‘At last!’

Olaug was sitting on the bed with her hand around her throat and feeling her pulse slowly return to normal.

‘How you frightened me,’ she whispered in a voice which was hoarse and unrecognisable now.

‘I’m so sorry,’ Ina said, taking the last Maryland cookie. ‘I didn’t hear you come in.’

‘It’s me who should apologise,’ Olaug said. ‘Bursting in like that. I didn’t see that you were wearing those…’

‘Headphones,’ Ina laughed. ‘I probably had the music on pretty loud. Cole Porter.’

‘You know I’m not so up to date with modern music.’

‘Cole Porter is an old jazz musician. He’s dead, in fact.’

‘Dear me, someone as young as you shouldn’t be listening to dead people.’

Ina laughed again. When she had felt something touch her cheek she had automatically struck out with her hand and had hit the tray with the teaset on. There was still a fine layer of white sugar on the carpet.

‘Someone played me his records.’

‘That’s such a secretive smile,’ Olaug said. ‘Was it your gentleman friend?’

She regretted her question the moment she asked it. Ina would think she was spying on her.

‘Perhaps,’ Ina said, her eyes a-twinkle.

‘He’s older than you then, is he?’ Olaug wanted to intimate indirectly that she hadn’t gone out of her way to catch a glimpse of him. ‘Since he likes old music, I mean.’

She could hear that was the wrong thing to say, too. Now she was asking questions and probing like an old tittle-tattle. In a flash of panic, she saw Ina mentally looking for somewhere else to live already.

‘A bit older, yes.’

Ina’s playful smile confused Olaug.

‘Much like you and Herr Schwabe perhaps.’

Olaug laughed happily along with Ina, mostly out of relief.

‘Just imagine. He was sitting exactly where you’re sitting now,’ Ina said out of the blue.

Olaug ran her hand across the blanket on the bed.

‘Yes, just imagine.’

‘When he was crying that evening was it because he couldn’t have you?’

Olaug was still stroking the blanket. The rough wool felt good under her hand.

‘I don’t know,’ she said. ‘I didn’t dare ask. Instead I made up my own answers, the ones I liked best, dreams I could cosset at night. That was probably why I was so much in love as I was.’

‘Did you ever go out together?’

‘Yes. He took me once in his car to Bygdoy. We went swimming. That is, I went swimming while he sat and watched. He called me his very own nymph.’

‘Did his wife find out that her husband was the father when you became pregnant?’

Olaug gave Ina a lingering look. Then she shook her head.

‘They left the country in May of 1945. I never saw them again. It was only in July that I discovered I was pregnant.’

Olaug slapped the blanket with her hand.

‘But you must be sick and tired of my old stories, my dear. Let’s talk about you. Who is your gentleman friend?’

‘He’s a fine man.’

Ina still had the dreamy expression on her face that she usually wore when Olaug was telling her about her first and last lover, Ernst Schwabe.

‘He’s given me something,’ Ina said, opening a drawer in the desk and holding up a little packet tied with a golden ribbon.

‘He said I couldn’t open it until we got engaged.’

Olaug smiled and stroked Ina’s cheek. She was happy for her.

‘Are you fond of him?’

‘He’s different from all the others. He’s not so… he’s old-fashioned. He wants us to wait. With… you know what.’

Olaug nodded. ‘It sounds like he’s serious.’

‘Yes.’ A little sigh escaped her.

‘You’ll have to make sure he’s the man for you before you let him go any further,’ Olaug said.

‘I know,’ Ina said. ‘That’s what’s so difficult. He’s just been here, and before he left, I told him I needed time to think. He said he understood, I am so much younger than him.’

Olaug was going to ask if he had a dog, but caught herself in time. She had done enough prying and probing. She ran her hand across the blanket for the last time and stood up.

‘I’m going to go back and put on some more tea, my dear.’

It was a revelation. Not a miracle, just a revelation.

It was half an hour since the others had left and Harry had just finished reading the interview transcripts of the two women who lived together across from Lisbeth Barli. He turned off the reading lamp on the desk, blinked in the dark and suddenly it came to him. Perhaps because he had turned off the light as you do when you go to bed. Or perhaps because he had stopped thinking for a moment. Whatever the reason, it was as if someone had thrust a clear, sharp photograph in his face.

He went into the office where the keys for the crime scenes were kept and found the one he was looking for. Then he drove to Sofies gate, collected his torch and walked to Ullevalsveien. It was almost midnight. The first floor was locked and the launderette was closed. In the shop selling headstones there was a spotlight in the window lighting up ‘Rest in Peace’.

Harry let himself into Camilla Loen’s flat.

None of the furniture or anything else had been removed, but still his footsteps echoed. It was as if the demise of the owner had lent the flat a physical void it hadn’t had before. At the same time he had the feeling that he wasn’t alone. Harry believed in the existence of the soul. Not that he was particularly religious as such, but it was one thing which always struck him when he saw a dead body: the body was bereft of something, something that wasn’t to do with the processes of physical change that bodies undergo. Bodies looked like the empty shells of insects in a spider’s web – the creature had gone, the light had gone, there was not the illusory afterglow that long-since burned-out stars have. The body was missing its soul and it was this absence of the soul that made Harry believe.

He didn’t put on the light; the light of the moon through the skylights was enough. He went straight into the bedroom where he switched on his torch and shone it at the load-bearing beam beside the bed. A sharp intake of breath. It wasn’t a heart round a triangle as he had first thought.