Item from Prisoner of Azkaban by J.K. Rowling
A magical parchment showing every person, passage, room, and secret tunnel in Hogwarts in real time, created by Moony, Wormtail, Padfoot, and Prongs — given to Harry by the Weasley twins this year.
Also known as: the Marauder's Map, Marauder's Map, the Map