More than a century after Sherlock Holmes first capered into our world, what is it about Arthur Conan Doyle's peculiar creation that continues to fascinate us? Dundas provides a history of an idea, a biography of someone who never lived, a tour of the borderland between reality and fiction. He unearths the inspirations behind Holmes and his indispensable companion, Dr. John Watson, and reveals how Conan Doyle's tales laid the groundwork for an infinitely remixable myth, kept alive over the decades by writers, actors, and readers.