The Scotland Yard Puzzle Book
Since it opened its doors in 1829, Scotland Yard has used the science of detection to solve the most macabre of murders and catch the most audacious of thieves. The Scotland Yard Puzzle Book takes a look through the history of this famous institution and recreates some of the most complex puzzles its detectives have ever faced. Technology can now shine a light on some of the most difficult cases, but the analytical mind needed to crack the clues remains as essential as ever.
Bletchley Park Brainteasers
As well as approaching the country's finest mathematicians, they cast their nets much wider, interviewing sixth-form music students who could read orchestral scores, chess masters, poets, linguists, hieroglyphics experts and high society debutantes fresh from finishing school. To assess these individuals they devised various ingenious mind-twisters - hidden codes, cryptic crosswords, secret languages, complex riddles - and it is puzzles such as these, together with the fascinating recruitment stories that surround them, that make up the backbone of this book.