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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: Level D 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. This book is reproducible for single-classroom use. Please click the link below for a free printable worksheet sample. Download Sample Page