The gorge of the Jiu River in Romania is a part of Jiului National park in the western Carpathian Mountains. Through this gorge there is a railway line between Petrosani and Targu Jiu (Romanian railway line number 202). There are many railway tunnels, galleries and bridges. Due to age, parts of this line, like some old tunnels and retaining walls, seem abandoned and very spooky. The whole environment is left only to weather and natural influences. There are no houses and villages nearby, so in that gorge there is a large number of reptiles and poisonous snakes. It is known that snakes prefer to stay on the train tracks, especially in the evening when the tracks remains warm from the sun during the day. During the recording of trains at this line, I came across several snakes and some of them I managed to record. The most terrible of all was the snake in the middle of the railway tunnel in total darkness. This scene represents a horror note in this film and I think it completes the whole story about this railway line and its train traffic and makes it more interesting.