The Adventure of the Blue Carbuncle is one of 56 short Sherlock Holmes stories written by Sir Arthur Conan Doyle, the seventh story of twelve in the collection The Adventures of Sherlock Holmes. It was first published in Strand Magazine in January 1892.As London prepares for Christmas, newspapers report the theft of the near-priceless gemstone, the "Blue Carbuncle", from the hotel suite of the Cou...