Even Vampires Get the Blues (The Dark Ones, Book 4)

Paen Scott is a Dark One: a vampire without a soul. And his mother is about to lose hers, too, if Paen can't repay a debt to a demon by finding a relic known as the Jilin God-in five days. When he hires half-elf private investigator Samantha Cosse to help him, he sets her elf senses tingling. Which makes it pretty much impossible to keep their relationship on a professional level. Especially since Sam is convinced that she is Paen's Beloved-the woman who can give him back his soul, whether he wants it or not...