Harry Potter and the Half-Blood Prince continue. Harry finds out that the locket is not the real Horcrux, containing only a note from someone named "R. A. B.". Harry is so devastated by Dumbledore's death (and upset by its futility) that he tells his friends he will not be returning to Hogwarts. Instead, he will spend the next year searching out Voldemort's Horcruxes. Ron and Hermione insist on joining him in destroying Lord Voldemort for good. "Harry Potter and the Half-Blood Prince" is the sixth book in the Harry Potter series. The first book in the series, "Harry Potter and the Philosopher's Stone", was first published
Legal disputes over the Harry Potter series Doe. Outside these controversies, a number of particular incidents related to "Harry Potter" have also led, or almost led, to legal action. In 2005, a man was sentenced to four years in prison after firing a replica gun at a journalist during a staged deal for stolen copies of an unreleased "Harry Potter" novel, and attempting to blackmail the publisher with threats of releasing secrets from the book. Then in 2007 Bloomsbury Publishing contemplated legal action against the supermarket chain Asda for libel after the company accused them of overpricing the final "Harry Potter" novel, "Harry Potter and the Deathly