The Mistletoe Mystery
 This story begins when Nancy and George go to meet Nancy's friend and George's cousin, Bess who has been hired by Special Effects to decorate Albemarle's Department store for the Christmas holidays. The three girls, there then meet Bess' old conselor at camp when she was 10 whose name was Ali Marie. She is at first thrilled that Ali Marie is working at Albemarle's. But then some Ellen-Louise dresses are swiped. Ali is accused of the theft, since she was the last person to see them. Bess is sure of Ali's innocence, so she calls for Nancy's help to find the thief. They have many suspects and many misleading clues.