Who is Holmes? The world's most famous detective? A drug addict with a heart as cold as ice? A millstone around the neck of his creator? He's all of these things and much more. Holmes' deerstalker, curved pipe and cries of `Elementary, my dear Watson!' have been immortalised in countless stage, film, television and radio productions. An iconic fictional creation, inseparable from his partner in crime Dr John Watson, Sherlock Holmes has charmed and fascinated millions of people around the world since his first appearance over a century ago.