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The Warlord of Mars is a science fantasy novel by American writer Edgar Rice Burroughs, the third of his Barsoom series. Burroughs began writing it in June, 1913, going through five working titles; Yellow Men of Barsoom, The Fighting Prince of Mars, Across Savage Mars, The Prince of Helium, and The War Lord of Mars.

Before many of the current genres were cemented, Edgar Rice Burroughs began putting out a seemingly endless blur of sci-fi/fantasy/pulp fiction books, starting with A Princess of Mars. The third installment in his Martian - or Barsoom - series is The Warlord of Mars, featuring John Carter: ex-Civil War vet who's full of heroic, non-PC, early 20th century manliness. Carter's beloved Dejah is imprisoned in the Temple of the Sun, and he's had to wait an entire Barsoomian year for the entrance to her prison to be exposed. John Carter and Hekkador Matai Shang set out to rescue Holy Thern's daughter who is imprisoned with Dejah Thoris and Thuvia. John Carter is beset on all sides as he attempts to free the three hotties and to reunite with his wife. Follow the adventure as Carter chases his foes into the uncharted north pole region where he'll discover new and fantastic alien races.