‘All I’m saying is that you might have mentioned it. I stood there looking like an idiot when Kristina said that you and Karin were out taking a walk together.’

      ‘Er, uh … okay, I know.’ Patrik hung his head. The hour that Kristina had spent drinking coffee with them had been filled with undercurrents and surreptitious glances, and no sooner had she closed the front door behind her than Erica had exploded.

      ‘It’s not the fact that you’re out walking with your ex-wife that bothers me. I’m not the jealous type, and you know it. But why didn’t you tell me? That’s what upsets me.’

      ‘Sure, I can understand that …’ Patrik avoided looking Erica in the eye.

      ‘Understand! Is that all you can say? No explanation? I mean, I thought we could tell each other everything!’ Erica could sense that she was approaching the borderline of what might be considered an extreme over-reaction. But all the frustration of the past few days had now found an outlet, and she couldn’t stop herself.

      ‘And I thought the division of labour between us was clear! You were going to take paternity leave, and I was going to work. Instead you keep interrupting me, running upstairs to my workroom as if it has a revolving door, and yesterday you even had the nerve to leave the house for two hours and leave me to look after Maja. How do you think I handled things during the year I was home alone with her? Do you think I had some bloody maid who could step in whenever I needed to run out to do errands? Or someone who could tell me where Maja’s mittens were? Do you?’ Erica could hear how shrill her voice was, and she wondered whether it was really possible for her to sound like that. She cut herself off in mid-flow and then said in a more muted tone:

      ‘I’m sorry, I didn’t mean … You know what? I think I’ll go for a walk. I need to get out of the house for a while.’

      ‘Do that,’ said Patrik, peering from under his fringe like a turtle cautiously sticking its head out to see if the coast was clear. ‘And I’m sorry that I didn’t …’ He gave her a pleading look.

      ‘Oh, don’t give me that look,’ said Erica, smiling faintly. The white flag had been hoisted. She regretted flying off the handle, but they’d have to talk later. Right now she needed some fresh air.

      She walked through town at a brisk pace. Fjällbacka seemed strangely deserted now that summer was over and the tourists had gone home. It was like a living room on the morning after a party: dirty glasses holding the dregs of wine and beer, a crumpled banner in the corner, a party hat perched askew on the head of a guest who had passed out on the sofa. But Erica actually preferred this time of year. Summertime was so intense, so intrusive. Right now a calm had settled over Ingrid Bergman Square. Maria and Mats would keep the Centrum kiosk open for a few more days and then close it up and return to their business in Sälen, just as they did every year. And that was what Erica loved so much about Fjällbacka: the predictability of it all. Each year the same thing, the same cycles. Exactly as it had been the year before.

      Erica said hi to everyone she met as she walked past Ingrid Bergman Square and up Galärbacken. She knew, or knew of, almost everybody in town. But she picked up speed as soon as anyone seemed inclined to stop for a chat. She just wasn’t in the mood.

      It was only as she passed the petrol station that she realized where she was heading.

      ‘Three cases of assault, two bank robberies, plus a few miscellaneous charges. But no convictions for agitating against ethnic groups,’ said Paula, closing the passenger-side door of the police vehicle. ‘I also came across a file on a guy named Per Ringholm, but only minor offences.’

      ‘That’s his grandson,’ said Martin, closing the door on the driver’s side. They had driven to Grebbestad, where Frans Ringholm lived in a flat next door to the Gästis Hotel.

      ‘I’ve had my share of drunken nights in that place,’ said Martin, nodding in the direction of Gästis.

      ‘I can imagine. But those days are over, right?’

      ‘You can say that again. I haven’t seen the inside of a dance hall in more than a year.’ He didn’t sound particularly unhappy about it. These days he was so in love with Pia that he never wanted to leave the flat they shared unless it was absolutely necessary. But before he found his princess he’d had to kiss quite a number of frogs, or rather toads.

      ‘What about you?’ Martin looked at Paula.

      ‘What about me?’ She pretended not to understand the question. And before he could pursue it any further they reached the door to Frans’s flat. Martin knocked loudly and was rewarded with the sound of footsteps approaching from inside.

      ‘Yes?’ A man with silvery grey hair, cropped so short that it was no more than stubble, opened the door. He was wearing jeans and a checked shirt, the type that the Swedish author Jan Guillou always wore, displaying a complete lack of interest in fashion trends.

      ‘Frans Ringholm?’ Martin studied him with open curiosity. The man was well known in the area – and beyond, as Martin had discovered after searching the Internet at home. Apparently Ringholm was a founder of one of Sweden’s fastest growing anti-foreigner organizations, and according to the chatter in various online forums, the group was starting to become a major force.

      ‘That’s right. What can I do for’ – he looked Martin and Paula up and down – ‘you officers?’

      ‘We have a few questions we’d like to ask you. May we come in?’

      Frans stepped aside without comment, merely raising one eyebrow. Martin looked around the flat in surprise. He didn’t know what he was expecting; something dirtier and messier, perhaps. Instead the flat was so tidy that it made his own place seem like a junkie’s den.

      ‘Have a seat.’ Frans motioned towards a couple of sofas in the living room to the right of the entry hall. ‘I just put on a fresh pot of coffee. Milk? Sugar?’ His voice was calm and courteous, and Martin and Paula exchanged slightly disconcerted looks.

      ‘None of the above, thanks,’ replied Martin.

      ‘Just milk, no sugar,’ said Paula as she entered the living room ahead of Martin. They sat down next to each other on the white sofa and looked around. The room was bright and airy, with big windows facing the sea. The flat didn’t seem overly fastidious, just comfortable and well-kept.

      ‘Here, have some coffee.’ Frans came in carrying a heavily loaded tray. He set down three cups of steaming coffee, and then a big plate of biscuits.

      ‘Go ahead and help yourselves.’ He gestured towards the coffee table and then picked up one of the cups before leaning back in a big armchair. ‘So, how can I be of service?’

      Paula took a sip of coffee. Then she said, ‘I’m sure you’ve heard about the man who was found dead just outside of Fjällbacka.’

      ‘Erik, yes,’ said Frans, nodding sadly before sipping his coffee. ‘Yes, I was very upset when I heard the news. It’s awful for Axel. This must be a terrible time for him.’

      ‘Er, yes, well …’ Martin cleared his throat. He’d been caught off guard by the man’s friendliness, and by the fact that Ringholm was the complete opposite of what he’d expected. But he pulled himself together and said: ‘The reason that we’d like to talk to you is that we found some letters from you in the house, addressed to Erik Frankel.’

      ‘Oh, so he saved those letters,’ said Frans, chuckling as he reached for a biscuit. ‘Erik loved to collect things. You young people probably think it’s extremely old-fashioned to send letters. But those of us who belong to the older generation have a hard time giving up old habits.’ He gave Paula a friendly wink. She almost smiled back but reminded herself that the man sitting in front of her had devoted his whole life to trying to thwart and combat people like herself.

      ‘In your letters you talk about a threat …’ She