The Marauder's Map was a game-changer in the Harry Potter series, and when it was first introduced, my jaw dropped wide open to expose little jagged teeth, because I was a vampire child. Okay, I am kidding about the vampire part, but to be fair, I did have my four front teeth pulled out at one point so I did kind of resemble a vampire for a good few years until new ones grew in. I had little fangs and everything. Anyway, the Marauder's map was a magical document that disclosed Hogwart's deepest secrets, such as the fact that Wormtail was actually alive. Fancy that!
Even Peeves was not exempt from this brilliant map that showed every inch of the castle, including secret passageways. As far as Harry was concerned, he had won the lotto. The map was not very useful when it came to the Chamber of Secrets, but aside from that, it was pretty cool.
More Harry Potter memes? Well, why didn't you just say so?