Warlord of Mars

Warlord of Mars is a science fiction novel written by Edgar Rice Burroughs. John Carter discovers that a First Born knows the secret of the Temple of the Sun and he and the Holy Hekkador Matai Shang want to rescue the Holy Thern's daughter, who is imprisoned with Dejah Thoris and another Barsoomian princess, Thuvia of Ptarth. John Carter follows them in the hope of liberating his beloved wife. His antagonists flee to the north, taking the three women along. Thereafter John Carter follows them untiring into the north polar regions where he discovers more fantastic creatures and ancient, mysterious Martian races. These he overcomes in battle, and is later proclaimed "Warlord of Barsoom" by his allies. The novel can be classed as a planetary romance. This genre is a subset of science fiction, similar to sword and sorcery, but including scientific elements.