Dark Legacy by Christine Feehan

In a beautiful compound hidden away from the world, Emeline Sanchez tries to blunt the pain that has wracked her body ever since her terrifying ordeal in the labyrinth beneath the city—when she was forced to exchange blood with an evil master vampire.

Now, it’s his voice that haunts her…that calls to her in the dark…that never lets her rest. And while the children that she helped to free from his clutches struggle to heal, watched over by their Carpathian protectors, Emeline knows one thing: She must sacrifice herself to keep them all from harm…