Sherlock Holmes: The Adventure of the Blue Carbuncle

"The Adventure of the Blue Carbuncle" is one of the twelve short stories in Sir Arthur Conan Doyle's collection, The Adventures of Sherlock Holmes. First published in 1892, this story features the renowned detective Sherlock Holmes as he investigates a mysterious case involving a valuable gemstone. Set amidst the bustling atmosphere of Victorian London, the tale showcases Holmes's deductive skills and keen observation.