"Howdy!" the flower cheerfully called. "My name is Flowey. You two must be lost."
Crossover - Gravity Falls & Undertale - Rated: T - English - Chapters: 26 - Words: 148,951 - Reviews: 366 - Favs: 503 - Follows: 494 - Updated: 1/31/2017 - Published: 11/27/2015 - Dipper P., Mabel P. - Complete