When a neighbor asks Nancy Drew to accompany her to an old uninhabited mansion a new mystery opens ups and danger lurks on the second floor. Nancy finds a witch tree symbol that leads her to Pennsylvania Dutch country in pursuit of a cunning and ruthless thief. <p/>The friendly welcome the young detective and her friends receive from the Amish people soon changes to hostility when it is rumored that Nancy is a witch! Superstition helps her adversary in his attempt to get her off his trail but Nancy does not give up. Persistently she uncovers one clue after another.<br>Nancy's intelligence and sleuthing ability finally lead to the fascinating solution of this puzzling case.