Martin frowned. ‘She has a teenage daughter, I know, and she shares a flat with a female friend. There’s been some whispering about that arrangement, but I don’t know . . .’

Patrik sighed. ‘We’ll just have to drive over to her place and then work out what’s best.’

A few minutes later they were knocking on the door of Marit’s flat. They’d checked the telephone book and found that she lived in a high-rise a few hundred metres from the police station. Both Patrik and Martin were breathing hard. This was the most dreaded task in the police force. Only when they heard footsteps inside did they realize that they hadn’t been sure that someone would even be at home at this hour of the afternoon.

The woman who opened the door knew at once why they had come. Martin and Patrik could see it in the way her face blanched and her shoulders drooped in resignation.

‘It’s about Marit, isn’t it? Has something happened?’ Her voice quavered, but she stepped aside to let them into the hallway.

‘Yes, unfortunately we have bad news. Marit Kaspersen was involved in a single-car accident. She . . . died,’ said Patrik in a low voice. The woman before them stood completely still. As if she were frozen in position and couldn’t manage to send signals from her brain to her muscles. Instead, her brain was busy processing the information she had just heard.

‘Would you like some coffee?’ she said at last, heading robotically towards the kitchen without waiting for their reply.

‘Is there someone we should call?’ Martin asked. The woman looked to be in shock. Her brown hair was cut in a practical pageboy, and she kept tucking it behind her ears. She was very thin, dressed in jeans and a jumper knitted in typical Norwegian style with a lovely, intricate pattern and big elegant silver clasps.

Kerstin shook her head. ‘No, I don’t have anybody. Nobody except . . . Marit. And Sofie of course. But she’s with her pappa.’

‘Sofie – is that Marit’s daughter?’ asked Patrik, shaking his head when Kerstin held up a carton of milk after pouring coffee into three cups.

‘Yes, she’s fifteen. It’s Ola’s turn this week. Every other week she stays with Marit and me, and the other times with Ola in Fjällbacka.’

‘You were close friends, you and Marit?’ Patrik felt a bit uneasy at the way he asked the question, but he didn’t know how else to broach the subject. He took a sip of coffee as he waited for her answer. It was delicious. Strong, just the way he liked it.

A wry smile from Kerstin showed that she knew what he was asking. Her eyes filled with tears when she said, ‘We were friends the weeks when Sofie stayed here, but lovers when she was with Ola. That was what we . . .’ Her voice broke and tears started running down her cheeks.

She cried for a while. Then she made an effort to get her voice under control again and went on: ‘That was what we were arguing about last night. For the hundredth time. Marit wanted to stay in the closet, and I was suffocating and wanted to come out. She blamed Sofie, but that was just an excuse. Marit was the one who wasn’t ready to subject herself to gossip and stares. I tried to explain to her that she couldn’t escape it anyway. There was already plenty of gossip and staring. And even if initially people would talk if we made our relationship public, I was convinced it would die down after a while. But Marit refused to listen. She had lived a typical middle-class life for so many years, with a husband and child and a house and camping holidays in a trailer and all that. The idea that she might have feelings for a woman was something she hid deep inside. But when we met it was as if all the pieces suddenly fell into place. At least that’s how she described it to me. She accepted the consequences and left Ola and moved in with me. But she still didn’t dare admit it publicly. And that’s what we argued about last night.’ Kerstin reached for a paper napkin and blew her nose.

‘What time did she leave?’ Patrik asked.

‘Around eight. Quarter past, I think. I realized that something must have happened. She never would have stayed out all night on purpose. But I hesitated to call the police. I thought she might have driven over to a friend’s house, or else she was out walking all night, or . . . I’m not sure what I thought. When you arrived I was just thinking about ringing round to the hospitals, and if I didn’t find her there I was going to call you.’

The tears had started falling again, and she had to blow her nose once more. Patrik could see how sorrow, pain, and self-reproach were whirling round inside her, and he wished there were something he could say that would at least take away the blame. But instead he was forced to make the matter worse.

‘We . . .’ he hesitated, cleared his throat, and then went on: ‘we suspect that she was highly intoxicated when the accident occurred. Is that something she . . . had a problem with?’

He took another sip of his coffee and wished for a second that he was somewhere else, far away. Not here, not in this kitchen, with these questions and this grief. Kerstin gave him a surprised look.

‘Marit never drank. Not as long as I’ve known her, at least, and that’s more than four years. She didn’t like the taste. She didn’t even drink cider.’

Patrik gave Martin a significant look. Yet another odd detail to add to the elusive feeling he’d had ever since he saw the accident site a couple of hours earlier.

‘And you’re quite sure of this?’ It seemed a stupid question; she’d already answered it, but there was no room for ambiguities.

‘Yes, absolutely! I’ve never seen her drink wine or beer or anything like that. To think that she had got drunk and then got behind the wheel . . . no, that just can’t be. I don’t understand.’ Kerstin looked at Patrik and then at Martin with bewilderment. There was no rhyme or reason to what they had said. Marit didn’t drink, it was as simple as that.

‘Where can we get hold of her daughter? Do you have an address for Marit’s ex-husband?’ Martin asked, taking out a notebook and pen.

‘He lives in the Kullen area of Fjällbacka. I have the address here.’ She took down a note from the bulletin board and handed it to Martin. She still looked confused, but the inexplicable news had made her stop crying for a while.

‘So you don’t want us to ring anyone for you?’ asked Patrik as he got up from the table.

‘No. I . . . I think I’d like to be alone for now.’

‘Okay. But do call if there’s anything we can do.’ Patrik left her his card. He turned round just before pulling the front door closed behind him and Martin. Kerstin was still sitting at the kitchen table. She sat totally still.

‘Annika! Has the new girl showed up yet?’ Mellberg yelled the question out into the corridor.

‘Yes!’ Annika shouted back without bothering to leave the reception.

‘So where is she?’ Mellberg continued, still shouting. ‘Right here,’ said a female voice, and a second later Hanna popped into the corridor.

‘Ah yes, well, yes, if you’re not too busy perhaps you’d like to come in and introduce yourself,’ he said acidly. ‘It’s customary for a person to say hello to her new boss; usually that’s the first thing one does at a new job.’

‘I beg your pardon,’ said Hanna solemnly, approaching Mellberg with her hand extended. ‘As soon as I arrived Patrik Hedström took me out on a call, and we just got back. I was on my way to see you, naturally. First of all, allow me to say how much I’ve heard about the great work everyone is doing here. It’s certainly to your credit how you’ve handled the homicide investigations in recent years. And there’s a lot of talk about what superb leadership you must have here, to enable such a small station to resolve those cases in such an exemplary way.’

She took his hand in a firm grip, as Mellberg gave her a suspicious glance to see whether he would find any sort of irony in what she’d just said. But her gaze held no sign of mockery, and he quickly decided to swallow the flattery whole. Maybe it wouldn’t be so bad to have a woman in uniform after all. She was easy on the eyes too. A bit too thin for his taste, but not half bad, not half bad at all. Although after the conversation he’d had that morning, with such a fortunate result, he had to admit that he didn’t feel the same tingle in the pit of his stomach at the sight of this attractive woman. To his great surprise his thoughts turned instead to Rose-Marie’s warm voice and the joy with which she had accepted his invitation to dinner.