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...