The Mystery of the Pirate's Map
Also in The Aldens of Fair Meadow Farm, Schoolhouse Mystery, Mystery Behind the Wall, Bus Station Mystery, Benny Uncovers a Mystery, The Mystery of the Hot Air Balloon, The Mystery of the Stolen Boxcar, The Mystery at the Crooked House, The Hockey Mystery, The Mystery at Skeleton Point
Also in The Mystery of the Mixed Up Zoo, The Camp Out Mystery, The Mystery Cruise, The Mystery in the Snow, The Mystery Horse, The Mystery Bookstore, The Mystery of the Stolen Boxcar, The Mystery of the Lost Mine, The Hurricane Mystery, The Mystery of the Secret Message