Realm of Light — Deborah Chester

The stunning conclusion to the “masterful” Ruby Throne trilogy from the national bestselling author of Reign of Shadows and Shadow War (Extrapolation).
 
After nine centuries -- and ten lifetimes -- the Emperor Kostimon is dead, and darkness sweeps the land. The emperor's young widow, Elandra, has fled the shadows of war with her champion, the warrior Caelan -- the man she has grown to love.
 
But is the emperor truly dead? Or can the power of the shadow god bring him back? Elandra must make a fateful decision -- to fulfill her destiny on the throne, or to follow her heart. And the warrior Caelan must stand and fight -- for his life, for his love, and for the entire kingdom.
 
“Chester is a world class fantasist.” -- The Best Reviews