Ashes of the Sun

In Django Wexler's new epic fantasy trilogy, two siblings fight on opposite sides of a looming civil war in a world rebuilt from the ashes of a magical war. Gyre seeks revenge against the mysterious Twilight Order that bought his sister twelve years ago, while Maya now wields magic as a warrior for the Order's cause. As they pursue a fabled city protecting a powerful artifact, the siblings will learn that even blood ties may not be enough to stop them from tearing their world apart.