The action of this fascinating novel develops against the backdrop of real historical events of Peter's Russia and the Northern War, into which unusual twists and turns in the destinies of the heroes are woven. The daughter of the Tatar Khan Sirin was supposed to marry a glorious warrior of the tribe and spend her whole life in the horde, but fate decreed otherwise. A girl, disguised as the Khan's son, is captured by the Russian Tsar as a hostage. Here, incredible adventures, fatal trials, loyalty and betrayal, exploits and mortal dangers, and, of course, love await her. But she must keep her secret at all costs...