Nitty Gritty 3: The Time Stealers, 1st edition

Yakkity, yakkity, yak. If it weren’t for his self-obsessed ex-girlfriend Jaz, Neil Jarvie would be entirely happy with his life in Tal City. Sure there were probably more manicured trees than there were people, but the surveillance net was so thorough you could always find any person or place or information you wanted on your mobile. Except, oddly enough, about the history of Tal City. And now he had a Timer on his hands. He’d thought it would be interesting to help out a time traveller, but this one seemed obsessed with her own history, as well as ridiculously paranoid about surveillance ...