The Pact - Sharon J. Bolton

''The Secret History for Millennials'' Belinda BauerA golden summer, and six talented teenagers are looking forward to the brightest of futures - until a daredevil game goes horribly wrong, leaving three strangers dead. 18-year-old Megan takes the blame for the crime, leaving her friends to get on with their lives. In return, they each agree to a ''favour'', payable on her release from prison. Twenty years later Megan is free.It is payback time. And her friends start disappearing, one by one . . . Richard & Judy bestseller Sharon Bolton is back, with her twistiest thriller yet.