Russia of the 18th century. Three teenage girls: a noblewoman, a gypsy woman, and a peasant girl. Three friends, three magics—the village, gypsy, and noble magics (the magic of precious stones). Circumstances force the magical girls to fight against Satan named Venediktov, who lives in splendid Saint Petersburg. Of course, the enemy will be defeated—but what adventures will the friends have before that? Help will come from a mysterious young priest, a French fencer who left his homeland for a reason unknown even to himself, Novgorod merchants, and wandering gypsies.
Secrets of the terrifying 16th century— the time of Ivan the Terrible—will be revealed to the friends. The dreadful events of that era continue secretly in the enlightened 18th century! The action unfolds in noble estates and monasteries, on the main road and in roadside inns, in small towns and in Saint Petersburg, and in the latter—in the midst of a great flood.