Boost your brain power and detox from the digital deluge with over 100 classic cryptogram puzzles inspired by the master of all complex problems, Sherlock Holme

​Solve over 144 puzzles, navigate around maps of London and the English countryside, search for hidden clues, and—most importantly—exercise your sharp int

Solve it like Sherlock: Generations of readers have made Sherlock Holmes the world's most famous fictional detective. Now, you have a chance to test your mettle

Boost your brain power and detox from the digital deluge with over 100 math and logic puzzles with the greatest riddle solver of all time, Sherlock Holmes. The

... Sherlock Holmes and ..John Watson have fascinated readers for well over a century and continue to be two of the most popular detective characters of all tim