The Adventure of the Blue Carbuncle

"The Adventure of the Blue Carbuncle" is a Sherlock Holmes story set around Christmas time, involving the mysterious theft of a priceless gemstone from a hotel. When a plumber with a criminal past is accused, Holmes delves into the clues surrounding a battered hat and a Christmas goose, uncovering details that challenge assumptions and lead to a surprising resolution. This tale is part of Arthur Conan Doyle's renowned collection, showcasing Holmes's keen deductive skills in a festive, intriguing mystery.