Pierre the Maze Detective has a new case. Mr X has stolen the Maze Stone, which has the power to turn the whole of Opera City into a maze. Can you help Pierre and his friend Carmen find their way through the mazes - and stop Mr X before it's too late? This beautifully illustrated book features 15 full-spread illustrations of intricate, magical mazes. Take a trip through a fantastic world of underground cities, hot-air balloons, tree-top towns and haunted houses. Trace your way through each maze, spot the clues and solve the extra mystery challenges along the way. Hours of puzzle fun. A page of answers with the routes through the mazes and other solutions is included at the end of the book. Ages 7 and up. Hardcover, 36 pages