Elements

Shade and Ashllin are part fae. Which means that they can control certain elements. Shade-Fire and Ash-Water. Which is good because they are sisters.
But when the land of fae is threatened, the sisters are told that only they have enough power to defeat the necromancer that kills the land, and the unseelie king, Alturas.
Soon the girls not only become endangered by the evil but also by love.
Will they survive all of this? Or will they perish?