Prelude to Fire by D.K. Holmberg

A warrior to a dying king discovers a destiny he never imagined.

Lacertin has served his king faithfully for decades, but has failed on his final mission for him. When he returns to the kingdoms, he discovers a dark secret to the king’s illness, and the only person who can truly help him hides a secret of her own. Lacertin must decide how much he will sacrifice for the people he cares most about.