Dipper and Mabel finally arrive to Gravity Falls for summer vacation after two years, hoping to reunite with their Grunkle and old friends for a new adventure. But as time goes on, the twins, along with their friends Soos and Wendy, discover a dark secret that humanity has kept hidden in the shadows for centuries, which will take them on an adventure that they will never forget.
Rated: T - English - Adventure/Sci-Fi - Chapters: 13 - Words: 57,358 - Reviews: 42 - Favs: 25 - Follows: 23 - Updated: 3/27/2015 - Published: 1/1/2015 - Dipper P., Mabel P., Soos, Wendy