Crimson Vows: The Vampire Lord of the Shadow Realm of Veth.

When Lena Vale's father dies, he leaves behind nothing but debt — and not the kind any solicitor can settle. Bound by an ancient blood contract she never signed, Lena is given seven days to present herself at Ashveil Manor, deep in the shadow realm of Veth, and give one year of her life in service to Lord Dorian Ashveil — the most feared vampire in a world she didn't know existed. She arrives under protest. The estate, apparently, listens. Dorian is nothing like what she expected. He is cold, yes — centuries old, commanding, and devastatingly careful with everything he allows himself to feel. But he is also unexpectedly honest. And he stands when she enters a room, every single time, as if she is worth the gesture. Lena tells herself it means nothing. She is wrong. As the months pass inside Veth's eternal dusk, the line between captive and chosen begins to blur. But darker forces are closing in — a rival clan with a weapon that runs on Lena's blood, a secret her father sold that could destroy everything, and a choice that no contract can make for her. She came to Veth to pay a debt. She may stay for something far more dangerous. Crimson Vow is a slow-burn vampire romantic fantasy for readers who like their heroines fierce, their heroes worth the wait, and their love stories earned one impossible moment at a time.