Gather clues and use deductive reasoning to solve the mysteries in Brain Games Who Done It? puzzle collection. * Features puzzles encouraging you to flex your cognitive muscles and solve mysteries ranging from everyday to obscure. * Unlock codes and cryptograms, untangle logic mazes and use visual and math skills to solve "Spy Fly" puzzles. * Expand your logic and reasoning skills, test your memory and push your creative thinking ability to new limits. * Spiral-bound,192 pages