The Headmaster's office is the office in Hogwarts Castle in which the current headmasters or headmistresses of Hogwarts School of Witchcraft and Wizardry work during the school year. It is located in the Headmaster's Tower, accessed through Gargoyle Corridor. Although this is never mentioned, it is entirely likely that the residence of the headmaster is adjacent to the office. It is reached by means of a circular, moving stone staircase, which in turn is concealed by a gargoyle on the third floor. The gargoyle will step aside in response to a password, though the headmaster is capable of overriding the password if, for any reason, he or she desires that it will not work.