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!