Fire Kingdom

The Fire Kingdom is a setting in Adventure Time. It is a gray, rocky land that appears to constantly be on fire for some reason filled with mountainous and rugged terrain. The castle of the Fire Kingdom is the Fire Palace.

It first appears in "Evicted!," in a flashback that shows Marceline hula-hooping in a sea of flames. It's possible that the Fire Count ruled the land, before "His Hero," since he's made of fire and wears a crown, but Flame King currently rules the Fire Kingdom.

The kingdom is made up of volcanoes and mountains on fire with seas of lava below.

The Fire Kingdom made its first official appearance in "Thank You" and was a center location in "Incendium".

Inhabitants

 * Flame Lord
 * Fire Wolves
 * Flame Princess
 * Lava Man
 * Fire Count (formerly)
 * Flambo
 * Flame King
 * Flame Jester (formerly)
 * Fire Kingdom Gaurd
 * Coal Piece

Possible Inhabitants

 * Fire Elemental
 * Scorcher
 * Zap
 * Weapon Head

Appearances

 * In "My Two Favorite People," Jake, Finn, and Lady Rainicorn have a picnic on what appears to be the border between the Grass Lands and the Fire Kingdom. This is also seen in the episode's title card.
 * 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!"
 * In "His Hero," Billy is shown to have saved the Cotton Candy Princess from a possible Fire Kingdom inhabitant, the Fire Count, during Billy's Song.
 * The Fire Kingdom makes a major appearance in Thank You; it is revealed to be on the border with the Ice Kingdom, with all the ice and snow melting in the area between the two. Creatures from the Fire Kingdom are found easily making their way into this realm such as Fire Wolves.