Heat changing Mug Marauder´s Map

Moony, Padfoot, Crown and Wormtail present the card of the Rummy. Activate the card by saying, "I solemnly swear that I am a Fouler!" Explore Hogwarts and deactivate the card after your endeavor with the chant, "Mischief done."

Volume: 460 mL
Not dishwasher or microwave safe