Dungeon Five

"Filch isn't in a good mood - he's got the flu and some third years accidentally plastered frog brains all over the ceiling in dungeon five. He's been cleaning all morning, and if he sees you dripping mud all over the place -"

- Nearly-Headless Nick to Harry Potter

Dungeon Five is a Potions classroom at Hogwarts School of Witchcraft and Wizardry. In 1992, some students created a mess in the dungeon, covering the ceiling with frog brains.

Appearances

 * Harry Potter and the Chamber of Secrets