The Harry Potter series is set in three locations: Little Whinging (that is, Surrey) and London in England, and Hogwarts School of Witchcraft and Wizardry in Scotland. Harry’s aunt and uncle (Petunia and Vernon Dursley) reside in Little Whinging, as does his cousin Dudley. Harry attends Hogwarts School of Witchcraft and Wizardry, which is presided over by headmaster Albus Dumbledore. Hagrid brings Harry from Little Whinging to Diagon Alley, the London shopping district where he purchases his school supplies before boarding the train to Hogwarts with fellow students Ron Weasley and Hermione Granger. Harry’s introduction to the wizarding world begins when he meets Ron and Hermione at Hogwarts. The three become fast friends and have many adventures together, including defeating Lord Voldemort. Quidditch is a popular sport at Hogwarts, and Harry plays an excellent game as a Seeker for Gryffindor. The wizarding world is hidden from the Muggle world; Harry must be careful not to reveal his powers to his non-magical friends. There are seven books in the Harry Potter series, with each book growing progressively longer as the storyline expands and more characters are introduced.