Harry Potter: The Marauder's Map Guide to Hogwarts - Jenna Ballard

"I solemnly swear that I am up to no good."
For the first time, readers can relive all the movie magic of
the Harry Potter series with this beautiful guidebook to the secrets
of Hogwarts, complete with four foldout pages containing portions
of the map.
When fans are finished poring over the text, they can open up
the wand, which doubles as an invisible ink marker
and light. The light reveals invisible ink secrets on
the foldout Marauder's Map pages, while the pen can help
readers create their own magical map, using the blank parchment
included at the back of this book.
When all is said and done, this spellbinding guide is sure to
have fans saying, "Mischief managed.".