abstract:Belphégor (English title The Mystery of the Louvre) is a 1927 crime novel by French writer Arthur Bernède, about a "phantom" which haunts the Louvre Museum, in reality a masked villain trying to steal a hidden treasure. It was simultaneously adapted as a movie serial starring René Navarre as Chantecoq, Bernède's fictional detective and Elmire Vautier as the villainous Belphégor.