'I thought you said you had spoken to him last week?'

'I called him this morning and asked if it would be all right for me to come by this evening.'

'What did he say?'

'That it would be fine. Why else would I have come? I am not an intrusive person. People have such bizarre preconceptions about doorto- door salesmen.'

It was likely that the man was lying.

'Let's take the whole thing from the top,' Wallander said.

'What is it that's happened?' the man interrupted.

'Artur Hålén is dead,' Wallander answered. 'And that is as much as I can say at this point.'

'But if the police are involved then something must have happened. Was he hit by a car?'

'For now that is as much as I can say,' Wallander repeated and wondered why he had to overdramatise the situation.

Then he asked the man to tell him the whole story.

'I am Emil Holmberg,' the man began. 'I am actually a school biology teacher. But I'm trying to sell encyclopedias to save up for a trip to Borneo.'

'Borneo?'

'I'm interested in tropical plants.'

Wallander nodded for him to continue.

'I walked around the neighbourhood here last week and knocked on people's doors. Artur Hålén showed some interest and asked me to come in. We sat here in the kitchen. I told him about the encyclopedia, what it cost, and showed him a copy of one of the volumes. After about half an hour he signed the contract. Then I called him today and he said that it would be all right for me to come by this evening.'

'Which day were you here last week?'

'Tuesday. Between around four and half past five.'

Wallander recalled that he had been on duty at that time. But he saw no reason to tell the man that he lived in the building. Especially since he had claimed to be a detective.

'Hålén was the only one who showed any interest,' Holmberg continued. 'A lady on one of the upper floors started to tell me off for disturbing people. These things happen, but not too often. Next door to here there was no one home, I remember.'