A daring attack was made on a secret organization searching for ancient artifacts. The only clue in the investigation was a bracelet with an ancient Slavic symbol - the sign of the god Perun. Gleb, Alexandra, Severin and Dinka go in search of a magical relic, but each time they are hampered by more and more new circumstances, as if someone is deliberately blocking the guys’ path. But whose machinations are these? A person or forces much more ancient?..