The Pines twins return to Oregon for their senior year, but something sinister lurks in the caves beneath Gravity Falls. Will Dipper and Mabel discover something more than monsters in the dark and deep? Dipper x Mabel
Gravity Falls - Rated: M - English - Romance/Adventure - Chapters: 3 - Words: 6,461 - Reviews: 1 - Favs: 16 - Follows: 20 - Updated: 6/8 - Published: 6/2 - Dipper P., Mabel P.