Something's happened.
A lot of things have happened.
If she could turn back time, she wondered how far she would go.
Twenty-six-year-old Maggie Barnes is someone you would never look at twice. Living alone in a month-to-month sublet in London, with no family but an estranged sister, no boyfriend or partner, and not much in the way of friends, Maggie is just the kind of person who could vanish from the face of the earth without anyone taking notice.
Or just the kind of person MI5 needs to thwart an international plot that puts all of Britain at risk.
Now one young woman has the chance to be a hero - if she can think quickly enough to stay alive.
Read MoreA beautifully written and ingeniously plotted standalone from Herron . . . this dark thriller is rife with the deadpan wit and trenchant observation that Herron's readers relish - Publishers WeeklyJohn Fowles's The Collector rewritten by Ruth Rendell - Independent IA cat-and-mouse psychological thriller about the people who fall through London's cracks. Perfectly crafted, beautifully written, I started it in the morning and it was dark when I looked up - Erin KellyIntriguing and filled with surprises . . . reads like John le Carre rewriting Alice in Wonderland - The SpectatorThere are more twists than a 1960s dance marathon in this unsettling tale, along with plenty of Herron's delicious dark humour - Daily Express