Over 100 specially commissioned riddles and conundrums, themed around the casebook of Sherlock Holmes.
Join the world's greatest fictional detective and use your own powers of deduction to solve these ingenious enigmas. This remarkable collection features all kinds of puzzles to suit all tastes and levels of logical skill from 'elementary' to 'impenetrable'.
'You know my methods, apply them'
Sherlock Holmes - The Sign of Four.