Treasure Hunt Puzzles in the Jungle... parted from friends on a trip to the Amazon; you spot a monkey holding a bright jewel. As you try to see where it s gone, you find yourself falling into another world. Now you will have to decode writing, use geometry, convert numbers to letters, solve mathematical problems and much more to find your way back. Treasure Hunt Puzzle Books... are a unique series of story-style puzzle books that propel you into four separate adventures. Each time you are on your own and must use problem-solving methods to move through a series of multi-stage puzzles and finally get back to your friends and the real world where your adventure began.