'Just days before its big hundred-year anniversary, the town of Tumblegum is in trouble. Its oldest and most precious possession, the map that belonged to its founder Ezra T. Tumblegum, has been stolen - swiped right off the wall of the community library! What low-down rotten scoundrel could have done this dastardly deed? Max and Maggie Maypole, the mayor’s grandchildren, are determined to find out. If you keep your eyes open for hidden clues, you too can help solve the mystery of the missing map!' (Publication summary)