You will Watch Adventure Time Season 5 Episode 6 online for free episodes with HQ / high quality. Stream cartoons Adventure Time Episode 58b Vault of Bones. Flame Princess begins to doubt whether or not she is in fact evil. Finn is insistent that she is not evil and takes her on a journey into a dungeon to help her sort out her thoughts. Flame Princess eventually proves to be a lover of destruction, but assures Finn that she only destroys bad guys.