What is the strange board game that Dipper and Mabel have just discovered in their attic bedroom? This story combines Gravity Falls with the Jumanji cartoon TV series.
Crossover - Jumanji & Gravity Falls - Rated: K+ - English - Adventure/Humor - Chapters: 3 - Words: 3,787 - Reviews: 6 - Favs: 10 - Follows: 12 - Updated: 5/1/2016 - Published: 5/8/2015 - Dipper P., Mabel P., Grunkle Stan, Grunkle Ford