70 specially commissioned puzzles set in the world of Sherlock Holmes, designed to test your powers of perception, logic and deduction.

London: November 1905. England and the world are changing. Into the rooms of Sherlock Holmes come Nikola Tesla and Thomas Edison-with new inventions that will a

More than 50 specially commissioned riddles and conundrums, themed around the casebook of Sherlock Holmes "You know my methods, apply them." --Sherlock Holmes T

There's no greater (fictional) puzzle-solver. Now you can learn Holmes' methods and become a master sleuth!

Sherlock Holmes is the world's greatest and most loved detective. Now you can learn his methods and become a master puzzle solver! Use your powers of deduction