@marilyn.protego: Protego — your real-life Marauder’s Map #harrypotter #protego #smartapp #potterhead #fyp

Dewey Walker, Jr :

Just an observation. There were seven floors at Hogwarts plus a dungeon where the Slytherin's stayed and the Chamber where the Basilisk lived. Dumbledore had a tower office and Tralawny had her tower. I understand why we didn't see the Chamber because it was never seen by James or his friends. But when we see the map we only see one floor!!!! Why?