MWA26118W All the information you need to solve the mystery is in the puzzle story; everything you need to deduce, reason and organize your thoughts is in the handy grid below. A great addition to our Perplexors puzzle collection, Grid Perplexors teach kids a step-by-step process that keeps their thinking linear and focused. Great practice for standardized tests that reward logic skills. Paperback; 50 puzzles on 56 pages. Recommended Ages: Ages 8 to 9 Features: -Product Type: Hall Passes; Learning Tools; Lesson Planners.-Subject: Critical Thinking.-Country of Manufacture: United States.Dimensions: -Overall Product Weight: 0.39.