Celestian

Celestian is a city that is surrounded by walls and the people are ruled by royals. This has been this way for ten years, when a EM wave caused panic all over the world by giving at least two percent out of the remaining ten percent of the population extraordinary powers. These people, Hathens, either serve the royals or hide out beyond the walls. If they don't either, then they shall be killed by the royal family.
There is a prophecy of five people gaining power of the elements and they have to decide: rebel or be controlled.
Lydia Testorm is a Hathen, living in a house that has been hidden from almost everyone. She lives with her step siblings, Tatum and Michael. As time passes by, Lydia notices Michael's strange behavior and a boy named Duke Finnigan.
Lydia starts to trust, a thing she hasn't done in a long time, Duke, but things turn for the worse once he disappears.
What will this future bring to Lydia and Tatum?