This award-winning graded readers series is full of original fiction, adapted fiction and factbooks especially written for teenagers. Andy and Mary are twins. During the school holidays, they accompany their mother on a business trip to Amsterdam. Andy and Mary witness what they believe to be two criminals hiding a painting from an art robbery. But they can't prove anything and nobody will believe them. This is a British English version of the title. The book comes with a CD-ROM/Audio CD with vocabulary games and complete text recordings. Cambridge Experience Readers, previously called Cambridge Discovery Readers, get your students hooked on reading.