ISBN-13: 9781338252804 / Angielski / Twarda / 2018 / 52 str.
This beautiful guidebook to the secrets of Hogwarts comes with four foldout pages containing portions of the Marauder's Map, and an invisible ink wand pen and light. The light reveals invisible ink secrets on the foldout pages, while the pen allows readers to create their own magical map at the back of the book.