Countess Katerina Vaduva roams Eastern Europe as a vampire for nearly six hundred years experiencing the horrors of mortal man - wars, plagues, genocide and torture. For centuries, she seeks shelter and security in the castles of counts and sultans. When her husband the Count of Slovakia passes, she pursues a new life with a colonel in the Prussian military. While her husband quests victory at battle, Katerina desires a naturalist scientist who seduces her with knowledge and a greater understanding of herself. It is for immortal love and the pursuit of progress she will risk her own mortality.