The 1660s of the sixteenth century. In Rus, the oprichnina has been introduced; countless conspiracies are woven against the tsar. Noble families feud with one another and with their ruler, and in the country there is fragmentation and turmoil on the brink of civil war.
At the very same time, the mightiest power in the world decided to take Russian lands into its own hands.
The Battle of the Ages is coming—one that will determine the future of Rus and of the rest of the world.
But only Andrey Zverev, Prince of Sakul, knows about it, by the right of possession being able to look into the future through the Belyes mirror.
And only he, amid the general confusion and indifference, tries to prevent catastrophe.