Rebecca thought they'd told each other everything. But have they?

Rebecca and her French pen friend have never met but from the beginning they've felt like sisters and shared their secrets. Emmanuelle's letters are safely tucked away inside Rebecca's bedside locker with her diary and other private things. It's unthinkable that anyone would spy in there.

Unthinkable - till the locker is raided and the letters tampered with. By whom? And why? Just what exactly is going on in this thrilling story about Rebecca Mason's life at Trebizon boarding school.....