After Vasilisa's mother dies, her father goes to Moscow and brings home a new wife. Fiercely devout, city-bred, Vasilisa's new stepmother forbids her family from honoring the household spirits. The family acquiesces, but Vasilisa is frightened, sensing that more hinges upon their rituals than anyone knows.
And indeed, crops begin to fail, evil creatures of the forest creep nearer, and misfortune stalks the village. All the while, Vasilisa's stepmother grows ever harsher in her determination to groom her rebellious stepdaughter for either marriage or confinement in a convent.
As danger circles, Vasilisa must defy even the people she loves and call on dangerous gifts she has long concealed--this, in order to protect her family from a threat that seems to have stepped from her nurse's most frightening tales.