Ten minutes went by.

‘Shall I go and get him?’ said Nicky, pulling his ear-buds from his ears and peering at the clock.

‘Best not,’ said Mum. Her foot had started tapping.

Another ten minutes passed. Finally, when Tanzie had taken Norman for a walk around the car park and Mum had done some stretches on the back of the car because she said she was bent out of shape, Mr Nicholls emerged.

He looked whiter than anyone Tanzie had ever seen, like paper. He looked like someone had rubbed at his features with a cheap eraser.

‘I think we might need to stop here for a bit,’ he said.

‘In the pub?’

‘Not the pub,’ he said, glancing behind him. ‘Definitely not the pub. Maybe … maybe somewhere a few miles away.’

‘Do you want me to drive?’ Mum said.

‘No,’ everyone said at once, and she smiled and tried to look like she wasn’t offended.

The Bluebell Haven was the only place within ten miles that wasn’t fully booked. It had eighteen static caravans, a playground with two swings and a sandpit, and a sign that said ‘No Dogs’.

Mr Nicholls let his face drop against the steering-wheel. ‘We’ll find somewhere else.’ He winced and doubled over. ‘Just give me a minute.’

‘No need.’

‘You said you can’t leave the dog in the car.’

‘We won’t leave him in the car. Tanzie,’ said Mum. ‘The sunglasses.’

There was a mobile home by the front gate marked ‘Reception’. Mum went in first, and Tanzie put the sunglasses on and waited outside on the step, watching through the bubbled-glass door. The fat man who raised himself wearily from a chair said she was lucky as there was only one still available, and they could have it for a special price.

‘How much is that?’ said Mum.

‘Eighty pound.’

‘For one night? In a static?’

‘It’s Saturday.’

‘And it’s seven o’clock at night and you had nobody in it.’

‘Someone might still come.’

‘Yeah. I heard Madonna was having a swift half down the road and looking for somewhere to park her entourage.’

‘No need to be sarky.’

‘No need to rip me off. Thirty pounds,’ Mum said, pulling the notes from her pocket.

‘Forty.’

‘Thirty-five.’ Mum held out a hand. ‘It’s all I’ve got. Oh, and we’ve got a dog.’

He lifted a meaty hand. ‘Read the sign. No dogs.’

‘He’s a guide dog. For my little girl. I’d remind you that it’s illegal to bar a person on the grounds of disability.’

Nicky opened the door and, holding her elbow, guided Tanzie in. She stood motionless behind her dark glasses while Norman stood patiently in front of her. They had done this twice when they’d had to catch the coach to Portsmouth after Dad had left.

‘He’s well trained,’ Mum said. ‘He’ll be no trouble.’

‘He’s my eyes,’ Tanzie said. ‘My life would be nothing without him.’

The man stared at her hand, and then at her. His jowls reminded Tanzie of Norman’s. She had to remember not to glance up at the television.

‘You’re busting my balls, lady.’

‘Oh, I do hope not,’ Mum said cheerfully.

He shook his head, withdrew his huge hand, and moved heavily towards a key cabinet. ‘Golden Acres. Second lane, fourth on the right. Near the toilet block.’

Mr Nicholls was so ill by the time they reached the static that it was possible he didn’t even notice where they were. He kept moaning softly and clutching his stomach and when he saw the word ‘Toilets’ he let out a little cry and disappeared. They didn’t see him for the best part of an hour.

Golden Acres wasn’t gold and didn’t look anything like even half an acre, but Mum said any port in a storm. There were two tiny bedrooms, and the sofas in the living room turned into another bed. Mum said that Nicky and Tanzie could stay in the one with twin beds, Mr Nicholls could go in the other and she would have the sofa. It was actually okay in their bedroom, even if Nicky’s feet did hang over the end of his bed and everywhere smelt of cigarettes. Mum opened some windows for a bit, then made up the beds with the duvets and ran the water until it came hot because she said Mr Nicholls would probably want a shower when he came back in.

Tanzie opened all the cupboards, which were made of chipboard, one after another, shut the floral curtains, and inspected the chemical loo in the bathroom, then pressed her nose to the window and counted all the lights in the other static caravans. (Only two seemed to be occupied. ‘That lying git,’ said Mum.)

While they waited for Mr Nicholls to come back, she studied the map from his car, running her fingers along the routes. ‘We’ve got plenty of time,’ she said. ‘Plenty. It’ll be fine. And look! More quiet time for you to revise.’ She sounded as if she was actually reassuring herself.

She had put her phone on to charge for precisely fifteen seconds when it rang. She started and picked it up, still plugged into the wall.

‘Hello?’ She sounded like she thought it might be Mr Nicholls, calling from the toilet block for more paper again. ‘Des?’ Her hand flew to her mouth. ‘Oh, God. Des, I’m not going to make it back in time.’

A series of muffled explosions at the other end.

‘I’m really sorry. I know what I said. But things have gone a bit crazy. I’m in …’ She pulled a face at Tanzie. ‘Where are we?’