Black Dragon
December Quinn

Gruffydd made a blood oath to devote his life to others, and loneliness is a price he's willing to pay. As the Black Dragon he spends his nights fighting, protecting his people from criminals and enemy invaders, ignoring the pain he thinks he deserves. But Isabelle's presence in his life forces him to confront his past and to see himself through the eyes of someone who doesn't think he's so unworthy after all.
Now he must choose between the promises he made and the wife he so desperately wants to claim — and Isabelle must fight to discover if love can defeat the fiercest dragon.