Only Holmes and Watson can get to the bottom of this baffling murder mystery. John Douglas is found in his study blasted faceless with a sawn-off shotgun. There is no obvious motive or suspect. Douglas and his wife, Ivy, a rich and locally popular couple, have lived for years in the ancient, moated Birlstone Manor House. Despite Douglas' nightly ritual of raising the drawbridge, a perpetrator had concealed himself, shot Douglas, and made a clean getaway.