What does the Global Positioning System and smartphones, iPad, or wearable devices, these fabulous gadgets that lets its users know their exact location anywhere on Earth, in the air, have in common with Sherlock Holmes? This guide book shows how even an advanced and baffling concept like GPS can be explained through the same logic that lets Sir Conan Doyle’s famous detective solve crime.

... 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 time. Who, then, could be better companions ... in this three-part puzzle adventure? With over 144 different puzzles, including cryptograms, crosswords, ciphers, and many more, inspried by six classic Sherlock Holmes short stories, modern puzzle-solvers and Sherlock fans serch for hidden clues, navigate around different countrysides, and, most importantly, exercise their sharp intellect and keen perception skills ... to solve each chapter's adventure. -- Cover, page [4]

My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram or the most intricate analysis, and I am in my own proper atmosphere. -Sherlock Holmes, The Sign of the Four. Pit your wits against the greatest detective of them all with this collection of over 130 fiendish and hugely entertaining puzzles and enigmas.Some involve riddles, some plays on words, and some rely on mathematical principles. Use your powers of logical deduction, and see if you can match the towering intellect of Sherlock Holmes. Not only does this collection include brilliant puzzles to ponder over, but it presents these quandaries within exchanges between Holmes and Watson. In this way, this puzzle book retains the same cosy Victorian charm that Holmes' tales are so loved for. Featuring the original pen and ink illustrations by Sidney Paget and George Hutchinson, this gorgeously designed puzzle book will immerse you in Holmes's mysteries and keep you entertained for hours!

Can you help Dr. Watson find his missing friend Sherlock Holmes? Follow the trail of clues in a series of interconnected logic puzzles to solve the mystery! Sherlock Holmes is missing, and he’s left a fiendishly puzzling trail of clues to his whereabouts. In Sherlock Holmes Escape Room Puzzles, you’ll take on the role of Sherlock’s trusted friend Dr. Watson and attempt to solve 10 interconnected puzzles to sort out the mystery. Each of the story-driven puzzles requires that you use logical reasoning, mathematics, and observation skills to find the solution. The puzzle pages in the book can also be downloaded using an included QR code if you want to share the fun with your friends. If you’re stumped, clues of three levels of difficulty will give you a push in the right direction. Button up your coat and don your sleuthing hat—for the game is afoot!

Pit your wits against the greatest detective of them all with this collection of fiendish and hugely entertaining puzzles and enigmas. Featuring the original Sherlock Holmes illustrations by Sidney Paget and George Hutchinson, it contains a great mix of conundrums to keep the most ardent puzzle and Sherlock fan entertained and challenged.

Holmes and Watson are back. Fresh from solving the baffling puzzles in The Sherlock Holmes Puzzle Collection, Dr John Watson returns with a new selection of his esteemed colleague's lost cases - an even more daring, difficult and downright perplexing bunch of conundrums. All written in the style of Sir Arthur Conan Doyle's great stories, this book deeply involves the reader in the solving of puzzles - and crimes!

Pit your wits against the greatest detective of them all with this collection of over 130 fiendish and hugely entertaining narrative puzzles. Some involve riddles, some plays on words, and some rely on mathematical principles. Use your powers of logical deduction, and see if you can match the towering intellect of Sherlock Holmes. Not only does this collection include brilliant puzzles to ponder over, but it presents these quandaries within exchanges between Holmes and Watson. In this way, this puzzle book retains the same cosy Victorian charm that Sir Arthur Conan Doyle's tales are so loved for. Featuring the original pen and ink illustrations by Sidney Paget and George Hutchinson, this gorgeously designed puzzle book will immerse you in Holmes's mysteries and keep you entertained for hours.