Tiuri is almost a full knight. He only has to pass one more challenge and he will be knighted. Tiuri must spend the night in the chapel in complete silence and without opening the door. When there is an urgent knock and a request for help, he risks his knighthood and opens the door to aid a man in need. Tiuri is asked to carry a letter to a knight in the forest which contains an important message for a befriended king. When Tiuri reaches said knight, he has been mortally wounded and asks Tiuri to deliver the letter himself. At first, Tiuri hesitates, but then accepts the mission. This is the point when the real adventure begins.