Two years after the release of the fifth book Harry Potter and the Order of the Phoenix The sixth book came out in July 2005 to mark the end of the series. Book after book, the Harry Potter series becomes closer to adults, but after the sixth book, it proves this. Through the book's journey of death, ruin, and old memories, Harry Potter discovers Voldemort's biggest secret and seeks to destroy it through this secret, as he returns in the past with Mentor Albus Dumbledore to discover more about Voldemort's history and secrets
