Fire Kingdom

The Fire Kingdom is a setting in Adventure Time. It first appears in "Evicted!", in a flashback that shows Marceline hula-hooping in a sea of flames. It is unknown whether this kingdom has a king, a princess, or any inhabitants at all, though it's possible that the Fire Count rules the land, since he's made of fire and wears a crown. Since Marceline is a vampire and has supernatural powers, she may be one of the only people that can go into the Fire Kingdom and come back unburned. It is also possible that beings made of fire, such as Fire Elemental and Flambo, could be inhabitants.

Appearances

 * In "My Two Favorite People", Jake, Finn and Rainicorn have a picnic on what appears to be the border between the Grass Lands and the Fire Kingdom.
 * According to one map released with the original series pitch documents, the Fire Kingdom (or "Kingdom of Fire" as it's labeled on the map) is bordered by water and the Isle of Steam to the south. A different map calls the area the "Burning Lands" and contains the warning: "Do not go here. It's on FIRE!"
 * When Finn rescues Stanley in "The Jiggler", Finn, Jake, and Stanly's family are shown coming from a flaming castle that might be related to the Fire Kingdom. Then again, it could just be a castle that has been set on fire.