Heartless, right?

The Mystery Twins are 19 and off to college. But things are different now. Mabel will be in California, while Dipper studies at the new Gravity Falls Community College. And if that's not enough, Dipper is forced to face Bill Cipher again. The demon is determined to destroy the minds of the Pines family. But things change, for better or worse. (This is more of a rough idea. Once the book is finished, I will most likely change the description)

Disclaimer: I don't own any characters, fanart, or have any affiliation with Gravity Falls. Just a fan writing a fanfic.