Code Breakers: Over 100 Challenging Cross-Fitness Brain Exercises (Sherlock Holmes Puzzles)

Are you ready to train your brain with the master code breaker of all time . . . Sherlock Holmes?

Join Dr. John H. Watson, our famous detective's faithful assistant, while he sets forth on a code-breaking adventure through a variety of settings filled with all types of characters as he attempts to sharpen his decoding skills to search for hidden clues and secret messages.

Over 100 challenging and brain-stimulating ciphers, cryptograms, and coded puzzles await inside that require a nimble mind and keen observation!