Crack over 90 devilishly puzzling cases in this hardboiled collection of crime conundrums.Written by internationally best-selling author Dr Gareth Moore, The Private Investigator Puzzle Book puts you in the shoes of a seasoned sleuth for hire, as you use every tool in your investigative arsenal to analyze crime scenes, identify suspects, decipher riddles and bring the city´s criminals to justice.As you venture into a dark and gritty criminal underworld in search of answers, you´ll test your wits in a variety of verbal and visual puzzles, spot the difference, code-cracking cryptograms, hanjie, sudoku and much more. Each scenario is unique, the stakes are high and it´s up to you to clean up the streets, one case at a time.Featuring dozens of mysteries, The Private Investigator Puzzle Book is a compelling collection of challenges that lets you channel your inner Dick Tracy or Philip Marlowe, and the ultimate puzzle book for fans of detective fiction.