Dark Legion (Blood of Blood Book 1)

The Empire made him a slave. They should have killed him when they had the chance.

Saul - a former prince - and his allies plot to steal the crown of Ubrain from the Emperor's vault. In the crown he sees the means to unify his enslaved people and bring them to freedom. But their road is not a straight one, and they soon find themselves caught in the middle of an unseen war as older powers work to twist the world to their own design. Saul has never been one to set easy tasks for himself, but he is determined to break the Empire's grip on his people, no matter how much blood must be spilled along the way. 
It was a mistake to let him live. One they'll pay for with blood.