Guarding Bloodlines by Deborah Garland

Never steal a vampire’s mate.
What is the world’s most dangerous vampire to do when the only woman he’s ever loved is about to be abducted? He strikes a devil’s bargain, but Loren Tagaris is done playing nice.
Loren’s gifts for destruction have made him the most feared vampire on the planet. To bargain for his progeny’s freedom, he’s forced to bend the knee to the precious New York Vampire Lords and find their missing commander in thirty days. Or hand Julianna, who’s part witch, over forever. Keeping her might prove a more difficult challenge. Watching her wield the powers he gave her turns him on to the point of madness. Whatever she is, he made her. She belongs to him. That’s how it works, right?
As a half-turned vampire/witch with warm blood and Loren’s deadly gifts, Julianna has been on the run for centuries. She hides from humans and is scorned by other vampires. Helping Loren, her powerful sire, might liberate her from the Lords, but submitting to that smoldering vampire will also end her freedom.
Loren can control anything except his desire for Julianna, and her powers are more dangerous than he ever imaged. When their hunt for the missing commander unearths a buried secret that terrifies even Loren, all bets are off, and it’s every vampire for himself. Suddenly the Lords abducting Julianna is the least of their problems.
Will Loren give up his own freedom once and for all to protect the allegiant world even if it means losing Julianna forever?