The Adventure Time episode serves as a critical bridge between the Ice King’s fanfiction and the eventual spin-off series by introducing a mysterious third "Fionna" and a strange lore-heavy signal. Episode Highlights
Watch how the reveal of the mysterious signal connects the Ice King's fanfiction to a larger multiverse: Adventure Time Review: S9E12 - Fionna and Cake and Fionna Uncivilized Elk YouTube• Aug 2, 2017 [S9E12] Fionna and Cake and Fionna
The footage on her tape shows Fionna and Cake in a swamp, retrieving a coffin containing a mummy. Ice King later discovers she is an imposter—a former shut-in who intercepted a signal on her TV and began cosplaying as Fionna to trick him into giving her more "episodes". The Adventure Time episode serves as a critical
This episode laid the groundwork for the . It was later revealed in the spin-off that the "signal" was actually Prismo the Wishmaster beaming an unauthorized universe he created into the Ice King’s mind to keep it hidden from his boss, the Scarab. This episode laid the groundwork for the
This episode reveals that Fionna and Cake stories aren't just Ice King's imagination; they are based on a mysterious red light beam transmitted into his head while he sleeps. Production & Credits Airdate: July 19, 2017.
While Ice King is hosting a public reading of his latest fanfiction, an older woman claiming to be the "real" Fionna arrives. She criticizes his stories and provides a VHS tape as "proof" of her past adventures with Cake.
Elizabeth Ito (Supervising) and Sandra Lee (Art).