Nancy finds that she's not finished helping out the Crandall family as Emily's grandmother and her sister, Helen's grandmother, have been getting a rather suspicious haunting at their house lately. The suspicions change from a ghost to a real man when jewelry is stolen and they ask Carson for help. He sends Nancy to unmask the ghost, only for Nancy to put them both in danger the more she digs.

Christmas is round the corner and Nancy and her friends are on a shopping spree. But what a shock they find when the Princesses gown is stolen from a near by store. Nancy, being the young teen detective, is hell bent on finding the thief. But with Mrs.Cupcake, the snappy shop owner in her way, will she be able to find the culprit?