Elemental Plane of Fire

One of the four elemental planes. These planes, according to dominant theological / historical teachings in Exandria, were formed by the gods after The First War, at least partially from the corpses / essences of the titanic primordials that ruled before the war.
Each plane is related to one of the four base elements, this one's being that of "Fire".
This was, notably, where Thordak was trapped by Allura Vysoren and the Arcana Pansophical before being released by Raishan in 811 PD