Swords of Mars

"Swords of Mars" is a science fiction novel written by Edgar Rice Burroughs. Published in 1936, it is the eighth book in Burroughs "Barsoom" series, also known as the John Carter of Mars series. The story is set on the fictional planet Mars (Barsoom) and continues the adventures of John Carter, a former Confederate soldier who finds himself on Mars and becomes embroiled in the conflicts of its diverse civilizations.