About the book: year / School friends, having met after many years, decide to fulfill their youthful dream - to solve a mystery that local residents are afraid to talk about. They descend into a secret hole under a rock with mysterious ancient inscriptions and find themselves in another time. One of the friends unwittingly becomes a passenger on a train from which it is impossible to get off. The cast rushes through years, events and continents. The confrontation between the main character and one of the train passengers, an SS officer, can end in death. A beloved woman and a passionate desire to return to her world help in this struggle.