A new series of Jigsaw Jones mysteries kicks-off as Jigsaw and his class search for buried treasure. This first edition includes pages of puzzling codes and activities that readers can use to piece together clues. Illustrations.A new series of Jigsaw Jones mysteries kicks-off as Jigsaw and his class search for buried treasure. This first edition includes pages of puzzling codes and activities that readers can use to piece together clues. Illustrations.