Other editions of book Swords of Mars. Frontispiece by J. Allen St. John.

Swords of Mars" is the eighth book in the Edgar Rice Burroughs' Martian series. It was featured in six issues of the "Blue Book" magazine in 1934-1935. John Carter reprises his role of hero as he vows to bring an end to the Assassins Guild. He must travel to one of the moons of Barsoom, Carter then creates a race of secret super assassins to destroy this powerful Guild of Assassins. He ventures to the city of Zedong in a fierce attempt to overthrow Ur Jan the leader pf the Assassins. There are many fantastic characters and galaxies in this compelling spy story in this edge of your seat science thriller.

"For the first time the action of the series goes off-planet, as Ur Jan and Gar Nal flee with Dejah to the Martian moon Thuria (Phobos) in one of the spacecraft, pursued by Carter and his allies Jat Or and Zanda in the other. The passage shrinks the travelers down until to them the tiny moon is the size of a planet. There, all are captured by the sun-worshipping Tarids, white-skinned and blue-haired natives of Thuria (which they call Ladan) whose mental powers render them invisible to the spacefarers. To win freedom from their jeweled prison, the antagonists must join forces with each other, aided by another captive, the one-eyed and two-mouthed chameleon-like "cat-man" Umka."