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

Harry Potter and the Order of the Phoenix is the fifth novel in the Harry Potter series, written by J. K. Rowling. It follows Harry Potter's struggles through his fifth year at Hogwarts School of Witchcraft and Wizardry, including the surreptitious return of the antagonist Lord Voldemort, O.W.L. exams, and an obstructive Ministry of Magic.