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? Explore a fantastic world of underground cities, hot-air balloons, tree-top towns and haunted houses and find the clues to solve the case along the way. If you're still searching for answers, fear not — a page with all solutions and routes through the mazes is included at the end of the book.

• 40 pages, featuring 15 full-spread illustrations
  
• 12.6" x 8.6"
• Ages 8+