About the book: year / The final part of the trilogy "Lost in the Tunnels". The novel takes place immediately after the end of The Ring of Fire. The main character and his friends set off through a secret tunnel, getting out of the destroyed city. Once on the surface, they learn about what is happening on the surface and try to start a new life, forgetting about the underground world. However, in order to enter into a new life, they have to make a difficult decision....