The haunted house

Luke and Lola wonder about strange noises in the house. Whether a ghost has gotten their way? Miss Moon sets out with them immediately and discovers Magician Adalbert, who has become a ghost by an incorrect ingredient in the potion. He has an appointment with the President of the High Council of Magicians and asks Miss Moon to help him find his way back to his old form. But it takes a photo of a face that is frightened by a ghost. How are they supposed to get it?