Missing, Believed Crazy — Terence Blacker

Five kids at an exclusive private school hatch a daring plan to fake a kidnap and raise money for charity. There's brainy scholarship boy, Wiki, super-glam Jade, too-cool-for-school Mark, everyone's best friend Holly - and then there's Trix. It was her brilliant idea in the first place. A kidnap, a rural hideaway, a load of money . . . and all for the very best of motives. What could possibly go wrong?