The Marauder’s Map from the Harry Potter films has smashed records to become the most expensive prop ever sold from the movie franchise. The prop, which famously first appeared in Harry Potter ...

(That last one's a hint for later.) They also created the "Marauder's Map," a magical item that eventually comes into Harry's ...

That’s the phrase characters in the Harry Potter universe declare to open the Marauder's Map — a magical piece of parchment that shows where people are walking around in Harry’s school ...