They say "keep your friends close and your enemies closer", and you can do just that with this stylish Harry Potter Voldemort Heat Change Mug. With a design featuring The Dark Lord himself and the phrase "He Who Must Not Be Named" on a black background when cold, this much changes as soon as it gets warm. Pour in your favorite hot beverage and watch as the black fades away to reveal the name "Voldermort" that is so feared by wizards around the globe. This stylish mug is perfect for your next tea-break and makes a wonderful gift for Harry Potter fans. Hand wash only. Not dishwasher safe. Do not microwave.