He strode off, leaving Tilly to trot after him. ‘Are you sure you’re going the right way?’ she asked a little breathlessly, and pointed over her shoulder. ‘Everyone else has gone that way.’

‘Which is why we’re going this way,’ said Campbell, not breaking his stride in the slightest. ‘It’s a tougher route, but much quicker.’

‘How on earth do you know that?’

‘I looked at a map this morning.’

Tilly stared at his back. ‘Boy, you really do want to win, don’t you?’ Her father was the only person she knew with that kind of drive to win at any cost.

‘Why are you here if you don’t?’ he countered. Just as her father would have done.

‘I was tricked into it.’ Tilly’s blue eyes sparkled with remembered indignation. ‘My twin brothers decided that it was time for me to get out of my rut and entered me in the competition. The first I knew of it was when people who work at the hospice started coming up to me and telling me how thrilled they were that I was taking part and what wonderful things they would be able to do with the money if I won. So I could hardly turn round then and say it was all a terrible mistake, could I?’ she grumbled.

Campbell glanced down at her. Her heart-shaped face was pink with exertion and she was vainly trying to stop the breeze blowing the mass of curly brown hair into her eyes. She looked cross and ruffled and vibrant in her red ski-suit. It seemed a bizarre choice to wear for a weekend walking in the hills, but at least there was no chance of her getting lost. You could see her coming a mile away. Perhaps the television people had told her they wanted her to be noticeable-although it was hard to imagine not noticing her.

‘Why not?’ he asked. ‘If you didn’t want to do it, you could have just said so.’

Of course he would say that, thought Tilly. It was easy for people like Campbell Sanderson and her father, who only ever focused on one thing. They didn’t worry about what other people would think or whether feelings would be hurt. They just said what they thought and did what they wanted and it never occurred to them to feel guilty about anything.