Mystery writer Anthony Eastwood is lured to the crime scene of a faked murder, where two individuals masquerading as police officers arrest him and charge him for murder. As the phony police officers escort Mr. Eastwood home, the true goal of the masquerade becomes apparent. ‘The Mystery of the Spanish Shawl’ was first published as ‘The Mystery of the Second Cucumber’ in The Novel Magazine, August 1924. It appears in the UK as ‘Mr. Eastwood’s Adventure’.