Who created the Marauder's Map, and how does it work?
James Potter, Sirius Black, Remus Lupin, and Peter Pettigrew, also known as Moony, Wormtail, Padfoot, and Prongs, created the Marauder's Map. This magical document reveals all of Hogwarts, showing every classroom, hallway, and corner of the castle, along with every person's location within it, moving in real-time.