Mensa Whodunits (Official Mensa Puzzle Book)

You can solve some of the most dastardly, downright confounding crimes ever committed. But first, check out some helpful tips that only the best detectives know about deciphering secret codes; writing messages in invisible ink; and dusting for fingerprints. Now you're ready to go out into the world and catch the evil criminals who have been preying on innocent citizens. From a jewelry heist to a Halloween homicide, you're on the case and people everywhere are safer because of it.