The Adventure of the Musgrave Ritual

"The Adventure of the Musgrave Ritual" is a short story by Arthur Conan Doyle, featuring his fictional detective Sherlock Holmes. The story was originally published in ''The Strand Magazine'' in the United Kingdom in May 1893, and in ''Harper's Weekly'' in the United States on 13 May 1893. It was collected in ''The Memoirs of Sherlock Holmes''.

Unlike the majority of Holmes stories, the main narrator is not Doctor Watson, but Sherlock Holmes himself. With Watson providing an introduction, the story within a story is a classic example of a frame tale. It is one of the earliest recorded cases investigated by Holmes, and establishes his problem solving skills.

"The Adventure of the Musgrave Ritual" shares elements with two Edgar Allan Poe tales: "The Gold-Bug" and "The Cask of Amontillado". Provided by Wikipedia