Zim, Dib, Gir, and Mini-Moose have found themselves in Gravity Falls for some reason and soon make friends with Dipper and Mabel. Will Zim destroy Gravity Falls? How will Dib react to supernatural of this world? Will Mabel get jealous of Dipper's new 'Mystery Partner? But seriously, how'd they get there? Does not contain disturbing shipping, but does have spoilers.
Rated: K - English - Humor/Mystery - Chapters: 16 - Words: 50,877 - Reviews: 56 - Favs: 78 - Follows: 58 - Updated: 2/22/2017 - Published: 1/21/2015 - Zim, Dib, Dipper P., Mabel P. - Complete