Ancient Rus' still remains an “unknown continent” for us. Information about the events that took place at that time is sometimes mysterious and contradictory. But if we give free rein to our imagination, a fascinating world of the 13th century will open before us, where people like you and me love and fight for their happiness, find an unexpected way out of seemingly hopeless situations and boldly face mortal danger. The passion and intrigue reigning in the principality of Yaroslav and at the headquarters of the Great Khan of the Golden Horde are not inferior in intensity to the plots of the adventure novels we have loved since childhood. The characters in the plot are fictional - but they are still from our past. The fatal beauties - Princess Ustinya, who by the will of fate finds herself in a foreign land, and the young Tatar Nargiz, brought to Rus' - test the strength of the feelings of the rulers of hostile camps. How to unravel the tangle of love and hatred, the thirst for power and the desire for justice?