Magma spirits are featured throughout Melting Stones. They are depicted as energetic, powerful, and hot because magma is made from molten rock. Because of this, stone beings such as Luvo and humans, particularly stone mages, are depicted as being in danger. In Daja's Book(Fire in the Forging) readers also saw that other mages were also sensitive to the heat in magma, although Tris was able to navigate through it freely. This is probably due to the nature of her magic. Magma spirits also have destructive elements due to their want to change and move, and the disasterous effects of volcanic eruptions on ecosystems.