Blood Charged

Sardelle Terushan, sorceress and healer, should be lying low. Magic is forbidden in Iskandia, and magic users are drowned, shot, or otherwise slain. The problem? She's fallen in love with ace fighter pilot and national hero, Colonel Ridge Zirkander, a man whom everybody notices, including the king. It's not long before Sardelle has spies dogging her steps and people trying to blow her up. Worse, her presence is jeopardizing Ridge's career. If she can't find a solution to the nation's centuries-old hatred of magic, the only way to protect Ridge—and herself—may be to leave.
Ridge Zirkander isn't used to worrying about more than shooting down Cofah airships and keeping the officers in his squadron alive, but his world has gotten more complicated since giving his heart to Sardelle. It's difficult to keep people from noticing a mysterious and enigmatic woman, not to mention her chatty sentient sword. He's been passing her off as an archaeologist to his fellow pilots, but when the king calls him in to a private meeting, Ridge fears his secret has been discovered.
But the king—and the rest of the country—has a greater problem. Cofah military scientists have acquired something that shouldn't exist in the world any longer: dragon blood. In addition to having countless mysterious properties, it's a powerful energy source that can be used to create devastating weapons. Ridge, Sardelle, and their allies must travel to the empire as part of a secret strike force to steal the dragon blood. If they fail, the Cofah will finally have the power to destroy all of Iskandia.
The Dragon Blood series reading order:
Book 1: Balanced on the Blade's Edge
Book 2: Deathmaker
Book 3: Blood Charged