Water.....
Earth....
Air.....
Fire....
These are the four main elements a habitable planet is made up of. But there exists multitude of other elements too. Such as sound, odor, light, wood, metal and so on.
Thea is a planet in which humans are born with talents to master any such elements. We call them the elementalists.
An impending doom is approaching Thea unknown to all.
It is the story of a boy who spreads light in the dark days.