The Boy in Striped Pyjamas, Серый

Penguin Readers is an ELT graded reader series for learners of English as a foreign language. With carefully adapted text, new illustrations and language learning exercises, the print edition also includes instructions to access supporting material online.
Titles include popular classics, exciting contemporary fiction, and thought-provoking non-fiction, introducing language learners to bestselling authors and compelling content.
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One day, Bruno's father gets a new job, and the family have to move from Berlin, Germany, to a new place. There is a strange camp at the end of the garden. Bruno is very unhappy and bored until he meets Shmuel. The two boys become very good friends. But why is Shmuel in the camp? And why is he wearing striped pyjamas?