The Flame Knife
 The Flame Knife is a 1955 fantasy novella written by Robert E. Howard and L. Sprague de Camp featuring Howard's seminal sword and sorcery hero Conan the Barbarian. It was revised by de Camp from Howard's original story a then-unpublished non-fantasy Oriental tale that featured Francis X. Gordon titled Three-Bladed Doom. De Camp changed the names of the characters added the fantastic element and recast the setting into Howard's Hyborian Age.