Once again the eminent detective is presented with a series of seemingly impenetrable cases: an illustrious client begs him to unmask the nefarious past of a roguish aristocrat; a retired art-supply dealer asks him to investigate the suspicious disappearance of his wife with her neighbour and a stash of money; a veteran of the Boer War appeals to him to track down a missing friend; a man has become convinced that his wife has been sucking their baby son's blood - will the most famous of sleuths be persuaded to offer his services and set off in pursuit of the criminals? The final collection of Holmes adventures, containing twelve brilliant, unpredictable stories, The Casebook of Sherlock Holmes is a fitting conclusion to its protagonist's long career and a powerful send-off for Conan Doyle's greatest creation.