Classics Illustrated: Three Famous Mysteries (Classics Illustrated #21)

This issue of Classic Comics contained an adaptation of three different mysteries - Sir Arthur Conan Doyle's The Sign of Four, Edgar Allan Poe's The Murders in the Rue Morgue, and Guy De Maupassant's The Flayed Hand. The issue was published by the Gilberton Company, Inc. in July 1944. Dan Levin adapted the novels for the comic, and Louis Zansky designed the cover art.