Once there lived a boy named Adrian. He was so silly that his friends always made fun of him. One day, his friends came to Adrian’s house and said, “Hurry up, Adrian! We must go to the riverbank right now! There is a black magic stone that we need to find!” Adrian asked them why. They said, “The person who finds this stone will get magical powers. He will become invisible!” Adrian raced to the riverbank and began collecting all the black-coloured stones. After sometime, his friends who were fooling him began to say, “Oh! It looks like Adrian found the stone! We can’t find him! He is invisible!” Saying this, they began throwing stones at him, pretending that they couldn’t see him. Foolish Adrian believed them and did not say anything to them.