In Deep Shift by Keira Blackwood

She stole my wallet–and my heart.

Dragonkind is all but extinct. My mission is simple—protect the survivors of the Therion Tribunal’s assault.
After centuries of searching, I’ve finally located the weapon that could shift the balance of power. This is the battle I’ve waited for my entire life. I’m ready to do what I must, whatever it takes.
But then she walks into my life. I know that Mia is my enemy. I know I shouldn’t let her in. Still, I find myself drawn to her. She is impossible to ignore, impossible to deny. She challenges me and stirs desires long suppressed. Being close to her allows me to hope, to feel. I can’t afford to give in.

And yet even if I wanted to, even when my mission depends on it—I can’t let her go.