Step into Hogwarts with our magical Marauder's Map wallpaper, Mischief Managed. Our clever Glow in the Dark ink reveals every corner and secret passage of Hogwarts from the iconic Marauder's Map created by Moony, Wormtail, Padfoot and Prongs. Charges during the day with natural light, or a flip of the light switch, and then fades gradually over a 30 minute period, to allow your child a peaceful night's sleep. Paste the Paper. Design Match: Offset, Design Repeat: 64cm, Roll Length: 10.05m, Roll Width: 52cm.