The action takes place in the 10th century, when Svyatoslav Igorevich occupies the princely throne, his mother Princess Olga is still alive. A possible version of events is presented to the readers when it will not be Prince Vladimir who will rule Kyiv and all Russia, but Prince Yaropolk, as the eldest son born of Svyatoslav's legal wife. In addition, where in science fiction without time trappers, here we are waiting for not one, but also a secret enemy of our hero.