‘No, I’m the police. But, as I say, Emily’s not in any trouble. I think she might have some useful information.’ Vera took a breath. It wouldn’t do to scare this woman by rushing her. This was the time for some common politeness. ‘How’s she getting on at home?’

‘Oh, you know. One day at a time.’ The woman seemed grateful that anyone was taking an interest.

‘But well enough to chat to me?’

Jackie didn’t answer, but she stood aside to let Vera in. ‘I don’t know how we came to this,’ she said. ‘She was such a good girl at school. Easy. Biddable, you know. We had no idea that she was having problems.’ There was a pause and a moment of honesty. ‘I should have given her more time. But I was going through the divorce, and work seemed the only way to stay sane. She was quiet, but she’d always been quiet. And quiet’s good, isn’t it? Quiet’s well behaved.’

Vera was aware of time passing. She was no priest paid to give absolution. ‘If I could just talk to Emily, Mrs James . . .’

‘Of course.’ The tic had returned. Did she think Vera would judge her by the state of her daughter? Perhaps she thought Vera would accuse her of being a dreadful parent because Emily cut herself. And perhaps Joe and Sal thought the world would hate them because they’d let their Jessie have a bit of freedom.

Emily seemed okay, less jittery than when Vera had last seen her. She was a beauty. Her long curly hair reminded Vera of a Pre-Raphaelite painting she’d seen in the Laing Art Gallery when she’d been at school.

‘Should I stay?’ Jackie asked. She seemed still more nervous and keen to do the right thing. She was more tense now than her daughter. Vera thought things might work out for them.

‘Why not?’ Vera said easily. ‘We’re just having a chat after all.’

Later, outside in the gloom, she checked her phone. She’d switched it to silent on going into the house. There was a missed call from Holly. She’d left a message to say that CCTV in the Metro system had flagged up Malcolm Kerr earlier in the day, but they’d lost him again. The trains were so crowded now that it was impossible to pick up individuals and there was no sign of Jessie. ‘Can you get in touch, Ma’am? We’re not quite sure where we should go from here.’