Igor Tarkhanin forced himself to forget about his first love, classmate Ulyana, for more than ten years, but still could not control himself and decided to resume his relationship with the girl. She greeted him coldly and didn’t even seem to recognize him... The further, the more it seemed to Igor that this was not Ulyana, and he decided to turn for help to Astra Eltsova, who was engaged in private investigations. As Astra learned, Igor and Ulyana have relatives in Suzdal... The ancient Russian city greeted Astra with silence, patriarchal landscapes and... secrets hidden literally at every step. The main one is the mystery of Princess Ksenia Godunova, who received as a gift from a foreign groom a symbol of the power of the Frankish Merovingian family and, according to legend, hid it in the Intercession Monastery in Suzdal. Thus, the search for the real Ulyana was intertwined with the history of an ancient artifact, which, by the will of fate, ended up in Rus' during the Time of Troubles...