‘Did you know Baldvin?’

‘Well, only after he and María got together. Baldvin was a great guy. He was studying drama but had more or less given up by the time they started going out. Didn’t really have what it took to be an actor, apparently.’

‘Oh?’

‘Yes, or so I heard – that he was better off opting for medicine. They were a terrific gang, the drama students, always having a laugh. People like Orri Fjeldsted, who’s obviously one of the big names today. Lilja and Saebjörn – they got married. Einar Vífill. They all became stars. Anyway, Baldvin switched to medicine and carried on acting alongside his studies for a while, but eventually gave up.’

‘Did he regret it, do you know?’

‘No, not that I’ve heard. Though he’s still very interested in the theatre. They went to a lot of plays and knew loads of people in showbiz, had friends at all the theatres.’

‘Do you know what sort of relationship Baldvin and Leonóra had?’

‘Well, of course he moved in with María, and Leonóra, who was a very strong character, was living there too. María sometimes said her mother tried to boss them around and it got on Baldvin’s nerves.’

‘What about María, what period of history was she interested in?’

‘She only had eyes for the Middle Ages, the stuff I found deadliest of all. She studied incest and bastardy and the laws and punishments associated with them. Her final dissertation was about drownings at Thingvellir. It was very informative. I got to proofread it for her.’

‘Drownings?’

‘Yes,’ Thorgerdur said. ‘The execution of adulteresses in the Drowning Pool and so on.’

Erlendur was silent. They had found a seat in the lounge at the hospital where Thorgerdur worked. An old lady inched past them on a Zimmer frame. An assistant nurse in white clogs hurried along the corridor. A group of medical students stood nearby, comparing notes.

‘Of course, it fits,’ Thorgerdur remarked.

‘What fits?’ Erlendur asked.

‘Well, I heard she’d… I heard she’d hanged herself. At her holiday cottage at Thingvellir.’

Erlendur looked at her without answering.

‘But of course it has nothing to do with me,’ Thorgerdur said awkwardly on receiving no reaction.

‘Do you know if she had any particular interest in the supernatural?’ Erlendur asked.

‘No, but she was terrified of the dark. Always had been, ever since I first knew her. She could never go home from the cinema alone, for instance. You always had to go with her. Yet she went to see all the scariest horror movies.’

‘Do you know why she was so frightened of the dark? Did she ever talk about it?’

‘I…’

Thorgerdur hesitated. She glanced out into the corridor as if to make sure that no one was listening. The old lady with the Zimmer frame had reached the end of the corridor and was standing there as if she didn’t know what to do next, as if the purpose of her trip had eluded her somewhere during her painfully slow progress up the corridor. In the distance an old favourite was playing on the radio: He loved the sea, did old Thórdur…

‘What was that?’ Erlendur asked, leaning forward.

‘I have the feeling she didn’t… there was something about what happened at Lake Thingvallavatn,’ Thorgerdur said. ‘When her father died.’

‘What?’

‘It’s a feeling I had, that I’ve had for a long time about what happened on Lake Thingvallavatn when she was a little girl. María could be very subdued at times and in very high spirits at others. She never mentioned that she was taking any medication but her exaggerated mood swings didn’t seem normal to me sometimes. Once, a long time ago when she was very depressed, I was sitting with her at her house in Grafarvogur when she started talking about Lake Thingvallavatn. It was the first I’d heard about it; she’d never raised the subject before in my hearing, and I immediately got the sense that she was crippled with guilt about what had happened.’

‘Why should she have felt guilty?’

‘I tried to discuss it with her later but she never opened up again like she did that first time. I felt she was always on guard because of what had happened but I’m absolutely convinced that there was something gnawing away at her, something she couldn’t tell anyone.’

‘Naturally, it was a terrible thing to happen,’ Erlendur said. ‘She watched her father drown.’

‘Of course.’

‘What did she say?’

‘She said that they should never have gone to the holiday cottage.’

‘Was that all?’

‘And…’

‘Yes?’

‘That perhaps he was meant to die.’

‘Her father?’

‘Yes, her father.’

The audience exploded with laughter, Valgerdur among them. Erlendur raised his eyebrows. The husband had appeared unexpectedly at the third door and let out a peculiar bark on spotting his wife in the arms of the butler. His wife thrust the butler away, crying that he had tried to have his wicked way with her. The butler gave the audience a look as if to say, ‘In your dreams!’ Cue more gales of laughter from the audience. Valgerdur, beaming from ear to ear, glanced at Erlendur, only to sense his boredom. She stroked his arm and he smiled at her.

After the show they went to a café. He ordered a chartreuse with his coffee. She ordered chocolate cake served hot with ice cream, and a sweet liqueur. They discussed the play. She had enjoyed it but he was unimpressed, merely pointing out inconsistencies in the plot.

‘Oh, Erlendur, it was only a farce. You’re not supposed to take it so seriously,’ Valgerdur said. ‘You’re supposed to laugh and forget yourself. I thought it was hilarious.’

‘Yes, people certainly laughed a lot,’ Erlendur said. ‘I’m not used to going to the theatre. Are you familiar with an actor called Orri Fjeldsted?’

He remembered what Thorgerdur had said about Baldvin’s actor friends. He himself knew next to nothing about the celebrity world.

‘Of course I do,’ Valgerdur said. ‘You saw him in The Wild Duck.’

‘The Wild Duck?’

‘Yes, he was the husband. A bit old for the role, perhaps, but… a very good actor.’

‘Yes, he is,’ Erlendur said.

A keen theatregoer, Valgerdur had managed to drag Erlendur along with her on a handful of occasions. She chose weighty plays, Ibsen and Strindberg, in the hope that they would appeal to him, but discovered that he was bored. He fell asleep during The Wild Duck. She tried comedies. They were beyond the pale, in his opinion. However, he did enjoy a dreary production of Death of a Salesman, which did not come as a particular surprise to Valgerdur.

The café was fairly empty. Easy-listening music was playing from somewhere above their heads. It sounded like Sinatra to Erlendur: ‘Moon River’. He had a record of Sinatra singing it. He had once seen a film in the cinema – he had forgotten the name – in which the song was sung by a beautiful actress. There were few people out in the chilly autumn weather. The odd figure darted past their window, bundled up in a down jacket or winter coat; faceless, nameless people who had business in town at this late hour.

‘Eva wants me and Halldóra to meet,’ Erlendur announced, sipping his liqueur.

‘Oh,’ Valgerdur said.

‘She wants us to try to improve our relationship.’

‘That makes sense, doesn’t it?’ Valgerdur said. She always took Eva Lind’s side when her name came up in conversation. ‘You have two children together. It’s natural for you to have some sort of contact. Is she prepared to meet you?’

‘So Eva says.’

‘Why haven’t you been in contact for all these years?’

Erlendur paused for thought.

‘Neither of us wanted it,’ he answered.

‘It must have been difficult for them. For Sindri and Eva.’

Erlendur did not reply.

‘What’s the worst that could happen?’ Valgerdur asked.

‘I don’t know. It’s become so remote, somehow. Our relationship. The way we were. A whole lifetime has passed since we lived together. What would we talk about? Why rake it all up?’