Moscow is in flames, leaving its people searching for answers – and someone to blame. Vasilisa, a girl with extraordinary gifts, must flee for her life, pursued by those who blame their misfortune on her magic.

Then a vengeful demon returns, stronger than ever. Determined to engulf the world in chaos, he finds allies among men and spirits. Mankind and magical creatures alike find their fates resting on Vasya's shoulders.

But she may not be able to save them all.