There is a popular legend in the Perm region that the founder of one of the ancient religions, the prophet Zarathustra, was born at the confluence of two Ural rivers, one of which bears the ancient Sanskrit name Kama. Some scientists also claim this... The main character of the novel, fascinated by black archeology, accidentally finds books of the 7th century, which say that the ancient Sassanid treasure exists in reality. But the pseudo-scientific businessman Sadomsky, in whose eyes the Perm land looks like a storehouse of lost treasures that should be extracted and sold profitably, organizes an expedition of black diggers to the Butyrsky settlement. However, the land on which we live and about which we know so little, skillfully preserves ancient secrets , capable of upending all established ideas about the paths of human development...