Harry Potter and the Half-Blood Prince by J.K. Rowling is the 6th book in the Harry Potter series. In this book the wizards and muggles struggle to keep Voldemort away. Meanwhile Dumbledore is gone for long periods of time, and the Order of the Phoenix is loose members. Life still goes on at Hogwarts though, and Harry and his friends learn to be better wizards.
5 out of 5 stars.