A dense book of short puzzles to solve.
Dr Crypton has published several books in the 80s and 90s where readers solve logic conundrums. In this book readers solve a huge amount of short conundrums, each covering a double page - with an illustration to accompany the problem.
Combining science and suspense, Dr. Crypton serves up 77 mini-mysteries that the reader can actually solve. Each story turns on a logical error, a wayward fact, or a bemusing riddle.