Saphrona Caldwell is a 233-year-old human-vampire hybrid who maintains a quiet existence in the strangest of places: on a farm, where she raises chickens and breeds horses, pigs, and dairy cows. A far cry from the life of Gothic glamour she once lived, she has all but walked away entirely from the world into which she was born. Her life is forever changed when she meets Mark Singleton, an immortal human whose blood is powerfully alluring and even narcotic to vampires. Though pleased to know her destined bondmate at last, Saphrona's happiness is complicated by a request to find someone who doesn't actually exist, Mark's shape-shifting half-sister, and the danger posed by an individual who is not above committing arson, kidnapping, and murder.