Wrath Bringer (The Epic of Battailous – Book One) by R. Jason Lynch

Calamitous was born during a fearfully stormy night. His twin brother, Salubrious, was born as that same storm began to calm and the night become peaceful. This was seen as a sign that Calamitous and Salubrious were two sides of the same promised savior. Yet, sometimes great expectations put undue pressure upon those who bear them - especially when it was foretold that the savior would defeat a cruel and cunning Dragon, destroy the Tree of Deepshadows, and heal the Tree-Glimmering.
Meanwhile, a young woman named Propitious is thrust into the world of adulthood, and the journey is proving to be painful. Will she allow her woes and sorrows to darken her heart, or will she keep her eyes trained upon the promise of hope?