Betrothed to the Vampire King. A Joyous Romance, #1

The first book in a compelling enemies-to-lovers paranormal romance series full of dark secrets, dangerous desires, and a love that could change everything. Being born to two vampire parents is rare. Powerful. Dangerous. Joy never wanted that power-or the attention that came with it. For as long as she can remember, she's been promised to King Frederick, the ancient and fearsome ruler of the vampire kingdom.
A man she's never met. A bond she never asked for. Joy dreams of love, not obligation. But as her fiftieth birthday nears-when a vampire fully matures-the king finally takes notice. Now he wants what's his. Joy finds herself pulled into a tangle of secrets and unexpected loyalties-one that challenges everything she thought she understood about her future and what she truly wants. Perfect for fans of steamy vampire romances, enemies-to-lovers, and heroines who bite back.
If you love Kresley Cole, J. R. Ward, or Laura Thalassa, you'll sink your teeth into this seductive paranormal tale. This book ends on a cliff hanger.