Hogwart's Very Own Cipher || Billdip

After being outwitted by the Pines family, Bill Cipher wakes up with some type of human form with access to his powers and another type of magic in an unknown place with unfamiliar people. But he only has two questions. Who or what the heck is Hogwarts? And why is Pinetree here?

Sorcerer's Stone - Deathly Hollows

I do not own Gravity falls or Harry Potter. Gravity Falls belongs to Alex Hirsch and Harry Potter belongs to J.K. Rowling

(I would recommend having some knowledge about the characters of both fandoms before reading)