"The Adventure of the Musgrave Ritual" is one of 56 Sherlock Holmes short stories by Arthur Conan Doyle.

In this frame tale, Holmes recounts the events of a particular case he worked on in relation to a university acquaintance, who's domestic staff vanished after secretly reading a family document. The document was in fact a riddle, which- in order to understand the peculiarities of the case- Holmes must solve.

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