Bibi and her friends are supposed to practice a duplication spell on Aunt Mania's hat. "Eeene meene ghost hours, the witch's hat has now disappeared. With cat meow and raven caw, the witch's hat is here four times. Hex-hex!" And indeed: Four identical hats are lying in front of the young witches! But when Bibi tries to pick one up, it suddenly makes a sound: "Meow!" Something must have gone wrong. However, the four realize that they can have a lot of fun with the enchanted witch hats...