Children's book: In Karlsson de la teulada

In Lillebror I lived one step away from a Stockholm building and the most valuable thing of all is having a house. In Karlsson I saw the teulada, a hut hidden behind the great xemeneia. According to him, he is handsome, intelligent, perfectly gracious and in the prime of life. Furthermore, you have a little helix at the scene and with it you can fly. In Lillebror he loves Karlsson, but his mother, his father, his great Germans and his friends are convinced that Karlsson is an invention of Lillebror; in Karlsson riu i diu: "They are indeed an invention." As soon as Karlsson's life in Lillebror appears, everything is going to become fantastic and exciting.