Marauder's Map Guide to Hogwarts Book Relive the magic of Harry Potter and the Prisoner of Azkaban with this Marauder's Map Guide to Hogwarts Book ($11). It contains secrets to Hogwarts as well as a wand that doubles as an invisible ink marker. The fun will never end! Image Source: target.com Marauder's Map Guide to Hogwarts Book $11 from target.com Buy Now