Yaga lives deep in the Russian forest, tending to any that call upon her for her healing potions and vast wisdom. She has been alone for centuries, with only her beloved animals for company. But when Tsaritsa Anastasia, wife of Tsar Ivan Vasilyevich, shows up at Yaga’s cottage on the brink of death, Yaga is compelled to travel with her to Moscow to keep her safe. However, the Russia Yaga sees as she makes her journey to the heart of the country is one on the brink of chaos. Tsar Ivan—soon to become Ivan the Terrible—grows more volatile and tyrannical by the day, and Yaga believes the tsaritsa is being poisoned by an unknown enemy. But what Yaga cannot know is that Ivan is being manipulated by powers far older and more fearsome than anyone can imagine...