Harry Potter and the Order of the Phoenix (Harry Potter, Book 5)

Harry Potter and the Order of the Phoenix is the fifth book in J.K. Rowling’s Harry Potter series and the longest in the saga. As Harry Potter enters his fifth year at Hogwarts School of Witchcraft and Wizardry, he faces growing skepticism from the wizarding world about Lord Voldemort’s return. Meanwhile, the Ministry of Magic installs Dolores Umbridge as the new Defense Against the Dark Arts professor, leading to strict rules and growing unrest among students.

Determined to fight back, Harry, Ron Weasley, and Hermione Granger form Dumbledore’s Army, a secret group dedicated to learning real defensive magic. As Harry struggles with visions connected to Voldemort, he uncovers a prophecy that could change everything. The book builds toward an intense battle at the Department of Mysteries, where Harry and his friends face off against Death Eaters, leading to devastating consequences.