Penguin Readers Level 3: "Sherlock Holmes and the Mystery of Boscombe Pool": Book and Audio CD (Penguin Readers)

[Penguin Readers Level 3]. Who killed Charles McCarthy? And why? Was it really his son? Sherlock Holmes, the brilliant detective, must answer these questions with the help of his trusted friend Dr Watson. An intriguing story - with Sherlock Holmes, the most famous and most eccentric detective in English literature, using his detective powers to solve the mystery.