How acute are your powers of perception? Do they begin to match those of Gervase Fen, Oxford don and sleuth supreme? These sixteen short stories are classic examples of Fen's mastery of his art-solving the most insoluble cries where even the best brains in the police force are frankly baffled. They also allow you to flex your own crime-solving museles: each story contains all the clues needed to anticipate the outcome, using logic and common sense... with a bit of ingenuity thrown in! Do you dare to take them on?