Amazing mazes, crafty whodunits, marvelous visual tricks, sly lateral thinking puzzles, and stupefying optical illusions: all these fun challenges--packaged in a cool book that's shaped like a magnifying glass--will give kids a brain workout they'll really enjoy. Every page has a picture of 1, 2, 3, 4, or 5 magnifying glasses; that symbol indicates how easy or treacherously difficult the puzzle will be. For example, finding the guilty party in "Foul...