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. The eight levels of Penguin Readers follow the Common European Framework of Reference for language learning ( CEFR ). Exercises at the back of each Reader help language learners to practise grammar, vocabulary, and key exam skills. Before, during and after-reading questions test readers' story comprehension and develop vocabulary. Visit the Penguin Readers website Exclusively with the print edition, readers can unlock online resources including a digital book, audio edition, lesson plans and answer keys. Oskar Shell is a clever nine-year-old boy. When his father is killed in the attacks on the World Trade Center on September 11th 2001, Oskar wants to learn the secret about a key that he discovers in his father's closet. His search takes