This Harry Potter heat changing cup will certainly throw a miracle spell over your early morning brew. Cold, the mug shows the password to your famous Marauder’s Map – “I solemnly swear that I am up to no good” – plus some footprints showing the pupils and instructors of Hogwarts perambulating the college. When hot liquid is poured in, the cup transforms to show Moony, Wormtail, Padfoot & Prong’s Marauder’s Map. Once the beverage is completed, the password to shut the map – “Mischief Managed” – is revealed in the bottom plus the mug returns to its initial state because it cools. An required for any Harry Potter display and makes a great gift suggestion for many Harry Potter fans! This fantastic cup measures H10cm x W9cm and comes packed in a gift box that is decorative. Not suited to dishwasher or microwave oven usage. Marauders Map Harry Potter Heat Change Mug. Please note. The details provided are not intended to provide a full or accurate definition of the product or it’s use and may contain errors, omisions or Ingredients not stated. For further clarity / confirmation please contact us with any questions. Some images may contain containers or product display elements that are Intended to show the products use but may not be supplied with the products.