From publisher blurb: The Lyhin Sourcebook is a guide to creating the magical vampires of the Lyhin Bloodline. Created in ancient times, the Lyhin masquerade as other Bloodlines, spreading their influence within undead society. Although they are rumored to be exinct and hunted by the Daemoni, the Lyhin Sourcebook is an invaluable tool for the roleplayer looking for more adventure in their gaming experience.