The Broken Vow: Vol. I of The Clandestine Exploits of a Werewolf

Ethan Garraint is on a vendetta that begins with the fall of Montségur and leads him to New Orleans nearly five hundred years later. But the person he chases isn't a man anymore and Ethan has been a werewolf for almost a millennium. With the aid of a gifted seer, he is on a blood hunt that will culminate in a journey that crosses the line between heaven and earth and ends somewhere in between.