A tale of hormones, sleepless nights, and overdue debts. When 19-year-old Dipper and Mabel Pines move back into the Mystery Shack after their Grunkle retires, the return of Bill Cipher threatens to upset the peace of the town. That is, until he makes a peculiar request.
Gravity Falls - Rated: M - English - Friendship/Romance - Chapters: 18 - Words: 187,297 - Reviews: 303 - Favs: 492 - Follows: 522 - Updated: 6/22/2018 - Published: 5/15/2015 - [Bill, Dipper P.] Mabel P.