Russia of the 18th century. Three teenage girls: a noblewoman, a gypsy, a peasant. Three friends, three magics - village, gypsy, noble (magic of precious stones). Circumstances force the magical girls to fight Satan named Venediktov, who lives in the brilliant St. Petersburg. The enemy, of course, will be defeated, but what adventures will happen to the friends first! They will be helped by a mysterious young priest, a French swordsman who, for a reason unknown to himself, left his homeland, Novgorod merchants and wandering gypsies.

The secrets of the terrible 16th century, the times of Ivan the Terrible, will be revealed to their friends. The events of this terrible time secretly continue in the enlightened XVIII century!

The action develops in noble estates and monasteries, on the high road and inns, in small towns and in St. Petersburg, in the latter - during a great flood .