Katrine only ever had thoughts of a normal life. As was custom, she would learn the ways of being a woman from her mother, Anastasia, so she could be a good wife and mother.
One day, in the fall of 1610, Katrine is innocently sent out into their village to collect some flour, setting in motion a chain of events that would turn her world upside down.
Tearing her away from her mother, three witches bring forth Katrine's true nature and uncover a secret hidden from her family for generations. Discovering she descends from a bloodline steeped in intrigue, Katrine fights to survive the deadly urges handed down from her Grandmother, Countess Elizabeth (Erzsebet) Bathory.
The werewolf Anastasia, illegitimate daughter of Erszebet Bathory, is able to meet her notorious mother at last. She discovers a pack of werewolves living in the forests around Csejthe and joins their ranks, forgetting her human life and her daughter.
Katrine and the Danse Macabre are set to travel to Moscow in pursuit of a mysterious creature rumored to be terrorizing the area. The troupe receives a chilly reception from the local vampires, who are suspicious of their associate Nikoli Osomov. Katherine also meets a member of the shadowy Order of the Dragon, who casts doubts on the motives of her cousin Gabor.
Meanwhile, the blood drinker Klara van Dores has been sold into slavery as punishment for her crimes against the Danse Macabre. Never one to submit to the will of others, she slaughters her new master and frees her fellow servants. But her behavior won't go unnoticed for long, and her new friend Olivia fears she may have been better off a slave.