‘The name’s unfamiliar. There is a Serb population in Glasgow and the mafia have the vice trade sewn up. Can you run the name through your databases?’

‘Sure thing, Detective. Have you learnt any more?’

‘I’m good. I know who the bent cops are; I now just need to prove it.’

‘I can’t help you with admissible evidence,’ she said, her fingers tapping at the keys. ’But I’ve just fully hacked his phone.’

‘You’ve done what?’

‘The malware has worked. I can mirror his phone onto my laptop. You can look at his photos, emails, messages, and everything really. Won’t even have to wait for it to backup to the Cloud. I impress myself sometimes. I’ve not managed to do this before, but thankfully it’s an old phone and old software. High-five, Detective.’ Pet held her hand aloft and Tom lightly slapped it.

‘I’ll load all messages into a spreadsheet for easy searching.’ She continued typing.

Tom sat next to her in front of the computer, watching as she opened Excel. There were very few messages and his eyes were drawn to the most recent one sent just four hours ago to someone listed as ‘Z’ with the number he recognised for Zjelko. The message content simply listed a name and address. Tom’s stomach lurched and rage gripped him like a vice.

The familiar Highlands address jumped off the screen and hit Tom in the face like a thunderbolt. His face darkened as the anger boiled, showing only as a hardening of his features and tenseness in the jawline.

Pet noticed the shift in his demeanour and asked, ‘Tom, what is it?’

‘That’s my foster family’s address. Taylor has sold them out to get to me. This changes everything.’ He voice was flat and emotionless but something in the delivery of the words conveyed the fury behind them.

Tom picked up the satellite phone and dialled a number from memory, holding it to his ear and walking around the apartment as he listened to the tone until the answer machine kicked in. He hung up without leaving a message and dialled another number, but that also went straight to answerphone. He dialled one more number: again, straight to answerphone.

‘No reply on their landline and both of their mobiles are switched off. That’s unheard of: Cameron is always on-call for mountain rescue and Shona is never without her phone. Something’s happened, I know it.’

‘Give me their numbers; I’ll run them through.’

Her fingers blurred across the keyboard and, after only a couple of minutes, she said, ‘Both phones were hitting a cell mast close to their home address until about thirty minutes ago. They were clearly switched off at the same time as they both lost the signal at about three-thirty. As they’re on different networks, it’s unlikely they lost signal at exactly the same time.’