قصة الكتاب :
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 . In The Adventure of the Blue Carbuncle by Sir Arthur Conan Doyle, the detective Sherlock Holmes and his friend Dr. John Watson try to determine the identity of a jewel thief .