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The Red Widow Murders is a mystery novel by the American writer John Dickson Carr (1906-1977), who published it under the name of Carter Dickson. It is a locked room mystery and features his series detective, Sir Henry Merrivale.
[edit] Plot summary
An oddly assorted group of people draw cards to see who will spend the night locked into a room said to be haunted by the "Red widow" -- a legendary figure who was married to a man who guillotined French aristocrats. In the morning, the victim is found dead, locked inside the room which was under observation continuously. Henry Merrivale must solve the mystery.
