Last Sacrifice by Moore James A.
Since time began the Grakhul immortal servants of the gods who choose who lives and who dies when it comes time to make sacrifices to their deities have been seeking to keep the world in balance and the gods appeased. When they take the family of Brogan McTyre to offer as sacrifice everything changes. Brogan heads off on a quest to save his family from the Grakhul. The decision this time is costlier than they expected leading to Brogan and his kin being hunted as criminals and the gods seeking to punish those who've defied them.