In the fourth, fifth and six books of Burroughs classic science fiction saga following John Carter, a human mysteriously transported to Mars, the epic scope expands introducing a cast of new characters. Included in this volume are the stories of John Carter and Dejah Thoris' son, Carthoris, who plunges the planet, known as Barsoom to its inhabitants, in to war in the name of love and their daughter, Tara who finds herself in a deadly game of Jetan with her suitor, Prince Gahan. In the final book the reader meets Ulysses Paxton, another earthling like Carter, who is transported to Mars where he finds himself being saved by the "Master Mind of Mars" Ras Thavas, a brilliant but devious being who has perfected brain transplants.