Sam and Dean haven't had a case in a week or so, and they find themselves in Oregon, just wishing for a case. When they hear of Gravity Falls, it seems like a cheesy enough tourist trap to relax for a bit in, but the town turns out to be so much more, and they realize they're not alone on their new case when Mabel and Dipper Pines show up. (Spoilers for Se.8 of SPN and ep.17 of GF)
Crossover - Supernatural & Gravity Falls - Rated: T - English - Supernatural/Adventure - Chapters: 4 - Words: 15,609 - Reviews: 63 - Favs: 239 - Follows: 69 - Published: 4/16/2013 - Sam W., Dean W., Dipper P., Mabel P. - Complete