A shake of the head. Then, ‘But she ought to be,’ he said so quietly that she wondered if she had heard properly.

‘What do you mean, Mark?’

‘Nothing. I suppose we’d better go back to Dad.’

Justin was still standing in the same place, watching for their return. For a moment Evie had an impression of uncertainty, but that must be an illusion caused by the distance.

‘Are you ready to come home?’ he asked Mark as they neared.

Quickly he looked up at Evie. ‘Are you coming with us?’

‘I can’t. I’m going out tonight and I’m late already.’

‘Please,’ he said.

Beside her she could sense Justin turn to stone, waiting for her reply.

‘All right,’ she said. ‘But I can’t stay for long.’

Mark’s face broke into a smile of relief. Justin relaxed slightly.

‘Let’s go,’ he said briefly, indicating the way back to the car.

Mark grabbed hold of her hand and almost dragged her along, making sure that she got into the back seat with him. Justin started up the car without a glance at them.

Nobody spoke during the journey. Mark kept hold of her hand and seemed content simply to have her there. Evie was glad of anything she could do for him, but she was beginning to be alarmed. This child barely knew her, except in class, yet he clung to her as though she were his saviour.

She didn’t know what he wanted to be saved from, but the glimpse she’d had of his lonely life had filled her with dismay. And something told her there was worse to come.

Lily opened the front door for them.

‘Miss Wharton’s really hungry,’ Mark said quickly.

‘I’ll go and see to supper,’ she said, and vanished.

Mark gave a violent sneeze.

‘I hope you haven’t caught cold,’ Evie said.

‘I’m all right,’ he said quickly, and vanished after Lily.

‘I hope you can stay with us long enough for supper at least,’ Justin murmured.

‘I’d better make a phone call.’