She shrugged to show it was of no real consequence and led him into a living room that was as big as the whole of Sandy’s flat. The colours were deep, rich browns and chestnuts with splashes of red. She lit a cigarette, inhaled deeply.

‘I gave up when I joined the Department of Health,’ she said. ‘But I don’t think anyone would criticize me now.’

‘Don’t you want someone with you?’ If there was a death in Whalsay, folk gathered round the relatives. This seemed an unnatural way to grieve.

‘No,’ she said. ‘I really don’t want to become a spectator sport.’ She looked at him through the cigarette smoke. ‘Did you know my daughter?’

‘Yes, my mother Evelyn was involved in the archaeological project. My grandmother lived at Setter, the croft where they were digging.’

‘Mima? The old woman who died?’

‘Yes,’ he said. ‘She got on very well with Hattie.’

‘Hattie wrote to me about her. I was pleased she was making friends on Whalsay, but jealous too in a way. My daughter and I always had a very strained relationship. It seemed sad that she was closer to a stranger than she was to me.’

‘I don’t think that was true.’ Sandy knew families were tricky. Look at his relationship with his mother. ‘My grandmother got on with all the young folk in the place.’ He paused. ‘Did Hattie write to you often?’

‘Once a week. It was a habit she developed after she left home. A duty. I think she found it easier than talking to me on the phone. She started when she went to university and continued even when she was quite ill in hospital. She kept it up ever since. We got on quite well by letter. Things only became difficult when we met in person.’

Sandy wondered fleetingly if he should try writing to his mother. ‘I don’t suppose you kept her letters?’

‘I did actually. Isn’t that sad? I have them all in a folder. When I feel especially lonely I re-read them. And do you know, she probably thought I just glanced at them then threw them away.’

Sandy didn’t know what to say so he kept quiet. That was what Perez did. ‘Just give her time and sense that you’re really listening to her.’

‘Would you like to see them?’ Gwen stubbed out the cigarette and looked at him through narrow eyes.

‘Very much.’

‘Shit,’ she said. ‘I don’t think I can do this entirely sober. Will you have a drink with me?’

He nodded. It wasn’t even as if he wanted a drink now, though he could have used one earlier. He didn’t want to break the mood.

‘Wine?’

He nodded again.