the mystery of lilac inn.

Nancy and her friend, Helen Corning, visit Lilac Inn to help their friend Emily Willoughby, whose diamonds are stolen. A mysterious ghostly figure on the grounds of Lilac Inn, a message with the words "blue pipes," and someone impersonating Nancy leads her dangerously on the trail of a gang of thieves with a dramatic conclusion aboard a ship. (The revision is mostly a brand new story and actually takes place centrally at Lilac Inn which makes for a nice story.