The new graded readers series 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.