Thuvia, Maid of Mars is the fourth novel in Edgar Rice Burroughs’s Barsoom series and follows Carthoris, the son of John Carter, whose love for Thuvia of Ptarth is complicated by her engagement to another prince and by growing political tensions among the Martian states. When Thuvia is abducted and Carthoris is falsely blamed for her disappearance, the threat of war spreads among Helium, Ptarth, and their allies, forcing him to pursue her while also trying to clear his name. Their journey leads them to the ancient city of Lothar, where a mysterious people can project warriors and monsters through the power of thought, blending romance, honor, political intrigue, and fantastic adventure into one of the series’ most imaginative episodes.