How much do you know about the world of Harry Potter, his friends and - of course - his enemies? Do you know what language Merpeople speak? How long does felix felicis take to prepare? Who played Delores Umbridge in the films? And what colour hue does the Dogbreath potion have? This fantastically fun quiz book contains eight hundred questions (and answers!) covering every aspect of wizarding life including the characters, life at Hogwarts, spells, potions, fantastic beasts and much, much more. From questions even a muggle could answer all the way through to trivia that would test Dumbledore himself, this is the perfect way to test your Harry Potter knowledge.