Campbell tsk-tsked. ‘That’s not the right attitude, Jenkins. You’re supposed to be thinking positive.’

‘Don’t call me Jenkins,’ said Tilly crossly as she jerked the straps into place. ‘It makes me feel as if I should be doing press ups and shouting sir!’

Ignoring her, Campbell turned to the producer, Suzy, who had come over to give them their final instructions before they set off.

‘You know where you’re going, and where the final checkpoint is?’ she asked.

‘All under control,’ Campbell told her.

‘Have you got everything you need?’

‘A lift home would be nice,’ muttered Tilly before Campbell frowned her down.

‘We’re fine.’

‘Roger and Leanne were second across, so they’ll be racing you to the top and back,’ said Suzy. ‘Roger’s got GPS,’ she added. ‘That’ll give them an advantage, but we’ve got it here, and I can give it to you, too, if you like.’

‘What’s GPS?’ asked Tilly.

‘It’s a satellite navigation gizmo,’ said Campbell dismissively. ‘Some people can’t get from A to B without them.’

‘Is that what Roger had on his watch?’

Tilly remembered Roger showing Leanne his watch and explaining loudly how it would not only tell him where he was but could measure altitude, barometric pressure, temperature and even his heart rate.

It wasn’t just his watch that was top of the range either. Roger’s jacket was apparently a wonder of technology, his boots were cutting edge and his thermal underwear had been tested under polar conditions. He had the gear for every eventuality.

Next to Roger, Campbell had cut an unimpressive figure. He had no fancy watch, no smart jacket, not even a plastic cover to stop his map getting wet. His trousers were tucked into thick socks and old leather boots, and he wore a thick blue Guernsey-oh, and a contemptuous expression, although Tilly couldn’t see why he was sneering at Roger. Roger was younger than Campbell and much better looking.

He smiled a lot, too, unlike some people who couldn’t manage much more than a twitch at the corner of their mouths, she remembered with a darkling glance at Campbell.

If GPS told you where you were, it sounded a very good thing to Tilly. ‘I think we should take one, just in case,’ she said, but was overruled by Campbell.

‘We’ve got a map,’ he said with finality. ‘That’s all we need.’

‘I’m surprised you’re even deigning to take a map,’ Tilly grumbled. ‘I’d got you down as one of those men who refuses to even look at a map. I bet you think you can get wherever you’re going by some kind of primeval instinct, as if you’ve got some universal A to Z encoded in your genes. I’m right, aren’t I? How many times have you driven round and round for hours rather than give in to the woman sitting beside you who’s bleating, “Why don’t we stop and ask for directions?”’

Campbell opened his mouth to make a cutting reply, but Suzy got in first. ‘That’s great!’ she said enthusiastically. ‘There’s real chemistry between you two. The viewers will love it!’

‘What viewers?’ said Tilly blankly.

‘This is a television programme,’ Suzy reminded her. ‘That’s why we’ve been filming you.’

‘What, just now?’ Tilly cast a hunted look around. Sure enough, one of the cameramen was filming them from a few feet away. ‘I thought it would be just when we were doing stuff,’ she whispered, hurriedly turning her back on him.

‘The interaction between you is just as interesting as how you get down a cliff or across a river,’ Suzy explained patiently. ‘The winners won’t necessarily be the ones who get to the end first. They’ll be the ones the viewers vote for, the ones they like and feel they can identify with. That reminds me,’ she said and dug in her bag. ‘You’ll need this.’

She produced a smart little video camera and handed it to Campbell.

‘What’s this for?’

‘You’ll have to film yourselves at the top of Ben Nuarrh, and then of course you’ll have to keep a video diary.’

‘What?’ Campbell’s brows snapped together and Tilly stared, united for once in their consternation.

‘The viewers aren’t just interested in whether you can rise to these challenges or not,’ said Suzy. ‘They want to know your reactions, too. Video diaries are a great way to get insight into what people really feel, and of course they’re very visual, too. People tend to treat them like a confessional. There’s nobody asking questions. It’s just you talking to the camera on your own, and it’s much harder to pretend somehow when you’re alone. People say things they wouldn’t dream of admitting in front of anyone else.’

Campbell was appalled at the very idea. He had got through life perfectly well without ever talking about his feelings and he had no intention of starting now. They could whistle if they wanted anything interesting out of him!

‘We don’t both have to do them, surely?’

‘Of course you do.’ Suzy was firm. ‘We’re interested in how you react to each other. For this part of the challenge, you’re the one who knows what he’s doing, but for the next part, it’ll be Tilly who’s in charge.’

‘What next part?’ asked Campbell with foreboding.

‘When Tilly teaches you how to make and decorate a wedding cake.’ Suzy’s smile faltered as she saw his expression. ‘Didn’t Keith tell you?’

‘No.’ His voice was grim. ‘He omitted that part.’

No doubt because Keith had known exactly how Campbell would react! He’d thought it would just be a question of getting Tilly to the last checkpoint before anyone else. Physical challenges, he could deal with. A race was no problem, but making a cake? What a ridiculous waste of time!

‘I’m not sure I can do that,’ he said.

‘Oh, come now,’ said Tilly, who had been watching his expression and reading it without any difficulty. ‘That’s not the right attitude, Sanderson,’ she quoted his words back at him wickedly. ‘You’re supposed to be thinking positive.’

The look he shot her promised vengeance but, with the camera still trained on them, he had to refrain from the murder that was clearly on his mind.

Tilly didn’t care. This was the first time she had enjoyed herself all day. Let Campbell Sanderson see what it was like to be made to do something completely alien! Suddenly she could see the point of the programme. She would be able to get her own back when he was in her kitchen. All she had to do was survive Ben Nuarrh.

‘I’m thinking about timing.’ Campbell frowned at her before turning to Suzy to explain. ‘I’m leaving Manning very soon and moving to a new job in the States. Obviously, I’ve got a lot to do before then.’

Suzy was dismayed. ‘If you can’t do the second part of the challenge, we’ll have to cut you,’ she said. ‘That would be such a shame! We’ve got some great footage of you two already. Roger and Leanne are doing well, too. If you drop out, it’ll probably mean a walkover for them, and then the competition would lose any tension. You know, it could be worse than a wedding cake,’ she added in a wheedling voice. ‘Roger’s got to learn to do a pedicure.’

‘Plus, they’ll all think we dropped out because we were losing,’ said Tilly, knowing Campbell would hate the very thought. It wasn’t that she cared about winning, but she wanted her revenge for today’s humiliations.

Campbell sucked in an irritable breath. He had a fairly clear idea of why Tilly was so keen for them to continue. She might look sweet with that rosy, heart-shaped face but there was an intriguing tartness to her, too. She would no doubt be hoping that it would be his turn to make a fool of himself next.

Let her hope. Campbell had no intention of indulging her. If he pulled out now, there would be no question of winning and, having got this far, he was loath to give up. How hard could it be to make a cake, after all? It wouldn’t take long, and if he needed to make more time, he would just delegate a few things to Keith. Serve him right for getting him into this mess in the first place.

‘But if we’re carrying on with the competition, we’re going to win,’ he warned Tilly as they said goodbye to Suzy and set off towards Ben Nuarrh. ‘That means no more dawdling!’

He set a punishing pace and Tilly was soon struggling. ‘Can’t we stop for five minutes so I can get my breath back?’ she pleaded at last.

‘You can have a rest when we get to the top.’

When she finally clambered up to where Campbell was waiting, Tilly was wheezing and bright red in the face.

‘God, this is killing me!’ She collapsed on to a rock while she struggled for breath. ‘If this is just a hill, I’m never going to get to the top of that mountain.’

‘You’re very unfit,’ he said disapprovingly.

Tilly scowled. ‘Why not come right out and say I’m fat?’

‘I would if that’s what I thought,’ he retorted. ‘You’re screwed up about your weight, clearly, but you don’t look fat to me. You do seem unfit. Don’t you take any exercise?’

‘Not if I can help it,’ said Tilly, only slightly mollified. ‘I’m too busy.’

‘Making cakes?’ Campbell didn’t bother to hide his disbelief.

‘Yes, making cakes,’ she said evenly. She was used to men pooh-poohing what she did for a living. ‘It’s my business.’

Campbell unscrewed a water bottle and passed it over to her. ‘Doesn’t that get boring?’

She shook her head as she drank gratefully. ‘I love it. And every cake I make is different. It’s not just piping endless icing roses for traditional wedding cakes. Every one I make is unique. I spend a lot of time talking to my clients so that I can come up with an individual design for their special occasion.’

‘Like what?’

‘It was some guy’s fortieth birthday the other day, and he’d always dreamt of having a Porsche. His wife couldn’t afford one of those, obviously, but she got me to make a cake in the shape of a Porsche 911, down to the last detail. Or I quite often make shoes or bags for girls’ twenty-first birthdays-they’re always fun.’