"Mom and Dad think that Karlsson is one of those friends that children make up when they feel alone. That's why they give Lillebror a little dog. Of course Lillebror loves his dog, but Karlsson is a much funnier playmate. ”I want to have fun otherwise I won't take part," says Karlsson, as he flew in through Lillebror's window, jolly and always ready for a new practical joke.Translator: Thyra Dohrenburg"