From the internationally-bestselling Murdle series comes a new book of immersive puzzle- and mystery-solving fun for young Murdle fans!\n\n\nJoin four junior sleuths on their daring detective journeys deciphering codes, navigating maps and solving mazes to catch the dastardly culprits of fiendish crimes - and earn your own Murdle Junior badge.\n\n\nRace to the top echelons of a prestigious school to unravel The Case of the Missing Pencil, explore the secret passageways beneath The Mysterious Investigation Institute and uncover the secrets of The Deadly Silent Spy Organization that links them all. And more!