The Martian Saucer Fleet, built using hyperdrive technology supplied by the alien emissary, is ready The human pioneers of Mars will launch against the Masters-evil Reptilians who attacked humanity once before from another solar system. And if the human fleet can free the emissary's enslaved Chontroon race from these overlord Masters, the two races will combine forces to prevent the Reptilians from spreading their villainy across the galaxy. Confident...