Sir Charles Baskerville has been found dead on the grounds of his home. Could he have been killed by the mysterious hound that is said to haunt the Baskerville family? Can Sherlock Holmes and Dr. Watson unravel the mystery? Penguin Readers is a series of the best new fiction, essential non-fiction and popular classics written for learners of English as a foreign language. Beautifully illustrated and carefully adapted, the series introduces language learners around the world to the bestselling authors and most compelling content from Penguin Random House. The eight levels of Penguin Readers follow the Common European Framework nd include language activities that help readers to develop key skills.