It’s the beginning of the spring term at Trebizon – with more new freedoms, but not for poor Mara! Her tycoon father, convinced she’s going to be kidnapped, has sent her back to school with a bodyguard. Mara’s furious – but could she really be in danger? When she suddenly disappears, her friends are bewildered. This looks like it could be their most challenging mystery yet. The fifth exciting book in the classic Trebizon series.