Mystery Challenge Puzzles from Ravensburger are a must for all puzzle fans looking for a real challenge: busy scenes in 500 pieces test concentration, perseverance, and skill, and are also great fun! Whether it's Darth Vader and the clone warriors from Star Wars, Pikachu & Co., or small-piece hidden object puzzles made of buttons or glitter, these Mystery Challenges are the perfect workout for all brain joggers and puzzle pros!