Fallen Captive by Aliya DalRae

Held captive from birth for crimes ultimately committed by another, the Vampire, Nox, escapes the Primeval only to spend his first hundred years of liberty searching for somewhere to belong. The last place he imagined he’d call home is with the Fallen Cross Legion, a military faction serving the very entity responsible for his wrongful imprisonment. The only complication is the fire-haired female who saved his life, if not his eye.
From the moment she laid eyes on him, Rachel found herself drawn to Nox. However, the loss of her human husband after a lifetime of devotion left her with no desire to put herself through that brand of heartbreak ever again. She doesn’t need a male in her world to feel complete.
When the Primeval demands an audience with Nox and the Legion Warriors, they find themselves far from home and at the mercy of a madman. Compelled by the Seer blood running through her veins, Rachel joins the Warriors on their journey to London, knowing full well they’ll be lucky to escape with their lives.
But her heart has betrayed her, and Rachel knows she must do whatever it takes to rescue the male that she loves.