‘I’m not sure.’ Grusche had noticed that Polly was staring. ‘Though the name of the artist sounds familiar. Of course it doesn’t have to be anyone local. The gallery stocks work by people from all over the country. That painting’s rather old-fashioned, don’t you think? Maybe something that’s been done with the tourist market in mind.’

Polly thought there was nothing of the chocolate box in the picture. The way the girl looked out at the viewer was disturbing, a kind of challenge.

‘I think I saw that child.’ Polly saw there was no escape from the nightmares even here. ‘On the beach during the wedding party.’ She looked at them, hoping for reassurance. Perhaps Caroline and Grusche, with their strength and their common sense, would have a rational explanation for her unease, her sense of being followed and undermined.

‘You mean it looks like the ghost of Peerie Lizzie?’ Caroline couldn’t keep the mockery from her voice. ‘Really, you can’t let your imagination run away with you, Pol. It’s being locked up in that dreadful house.’

A young waitress came with bowls of soup and bannocks and they began to eat.

Grusche frowned. Perhaps she thought Caroline was being unkind. ‘There’s only one painting of Lizzie Geldard and that’s in the museum in Lerwick. She doesn’t look anything like that girl, you know. I think you must be mistaken. All these dreadful things that have been happening . . . it’s easy to let your imagination run away from you.’

‘I’ve seen the portrait in Lerwick.’ Polly thought Grusche was treating her as if she were a child who needed to be humoured.

‘I always think the girl in the museum painting is very plain,’ Grusche said. ‘This lassie is quite different, don’t you think? She’s very bonny.’

‘Do you believe in the ghost?’ Polly looked up from her soup and waited intently for the reply, her spoon poised above the bowl.

‘Not at all!’ Grusche gave a little laugh. ‘I’ve lived in Meoness for thirty-five years and I’ve never seen her. Though I have a sneaky suspicion that George is a believer. He claims not to be, but men who’ve worked close to the sea are terribly superstitious and he has some strange ideas. He doesn’t talk about her, though. He thinks her death reflects badly on her family.’

‘Why does he think that?’ Caroline had already finished her soup and was spreading butter onto the remaining bread with brisk efficiency. Polly thought she’d never seen Caroline being dreamy or idle. Even her pursuit of Lowrie, when they were all students, had been carried out with a ruthless precision. She’d fancied him from the moment she first saw him and had decided she would make him ask her out. She’d just seen his infatuation with Eleanor in their first year as a challenge.