Getting inside the vampire labor camp will be easy, but escaping will be hell. Several months after their first victory over the vampires, Meridian Six and her band of rebels are called in to Book Mountain for a brand new mission. The leader of another rebel group needs help saving children who were captured by the Troika and sent to Krovgorod, the worst of the vampire labor camps. Meridian Six must team up with a human she doesn't know to save the children ... or die trying. Freedom is a luxury paid for with blood.