Tiuri is almost a knight. Only one night separates him from his knighting. This last night, he must spend in isolation and absolute silence. It is then that a cry for help rings out. If Tiuri responds, he will not become a knight. But it is a matter of life and death… Tiuri opens the door. The nocturnal visitor asks him a question that will change his life. He must deliver a secret letter to the king on the other side of the mountains – a letter that will determine the fate of the entire kingdom. Tiuri must leave everything behind: his home, his dreams – for a mission that could cost him his life.