Cat's Blood (A Short Story of Redemption... and Vampires)

Note for fans of Barb's other books: although Cat's Blood contains her usual themes of forgiveness and redemption, it is NOT G-rated.

Vampire Henri Charbonneau has spent many lifetimes searching for the genetic key to the rare women whose blood is addictive to vampires. But when he "rescues" one of these women, and begins his genetic experiments on her, he has no idea that he will be changed forever, and that this frail mortal will be the one to salvage his immortal soul from centuries of darkness....

A standalone short story; also available in an eerie audiobook edition.