She still felt insecure when strangers were in the room, socially awkward, despite her two degrees and her brilliant job at the Sentiman Library. It was to do with her voice and her modest suburban background, a fear of the educated classes learned from her parents. Sometimes she was convinced that Ian suffered in the same way; they were both from the north and they both lacked the confidence that Marcus and Eleanor had inherited along with their clear voices and their savings accounts. Perhaps they’d have been better suited together, leaving Eleanor and Marcus to make a stylish celebrity couple.

‘It’ll have been a fine wedding,’ the police officer said. It was the first time she’d heard him speak and though he spoke slowly she struggled to understand. Lowrie had been in England since university. They laughed at his accent sometimes, but it wasn’t as dense as this. ‘Unst folk always throw a good hamefarin’.’ Polly thought he sounded wistful, as if he wished he’d been invited.

‘I don’t think Eleanor came inside again last night,’ she said. ‘The door was still unlocked. If you’re from London you always lock the door. It’s a habit.’ She’d been thinking about that.

‘These midsummer nights some folk find it hard to sleep,’ Wilson said. ‘And the weather’s so fine your friend might have gone for a walk. You see the stars here in a way you can’t in the city. Lowrie and his family will be back tidying up in the hall at Meoness now. Perhaps she’s there.’

‘But the email?’ Polly cried. ‘Why would she send that?’

‘A kind of sick joke? Or maybe someone else hacked into her account?’

Polly shook her head. Eleanor loved mischief and practical jokes, but she wouldn’t put her friends through this kind of anxiety. If she’d sent the email she’d have been watching through the window and would come bursting in with a Ta-da, that had you fooled grin on her face before they had time to be worried. The email disturbed Polly almost more than anything else. She supposed it was possible that Eleanor’s account had been hacked.

‘Is it OK if I go and check in the hall?’ she said. ‘We never thought that Lowrie and Caroline might be there.’

Sandy Wilson looked confused. She could tell that he didn’t know what to do – he wasn’t a man used to making decisions and he wanted to ask his boss. So she took the responsibility from him by grabbing her jacket and leaving. ‘Thanks. Tell Marcus where I’ve gone.’ And she walked out of the house.