Spurs Jackson; Hank Roper; General Joyce; Meteor Men
When the Army is on maneuvers in the Arizona desert, they find themselves in the midst of a meteor shower. When some of the meteors prove to be low-minded creatures composed of rock and metal, impervious to bullets and explosions, it's up to Spurs Jackson to halt the invasion of the Meteor Men.
Hank Roper; Spurs Jackson; Strong Bow; Jawa the Artopod from Neptune
Spurs Jackson and Strong Bow go on a mission to investigate explosions seen on the moon, leaving Hank Roper to meet a group of costumed science fiction fans invited by Spurs for a nearby local convention. Expecting the fans to show up in costume and an airplane mocked-up to appear like a rocket ship, Hank is surprised when a real alien from Neptune named Jawa shows up instead. Jawa is an artopod, as are his crew of scouts preparing for an invasion of Earth. Hank must think quickly to outwit Jawa and his insectoid friends.
Spurs Jackson collects and explains the alien creature called the Saturlope. Saturlopes live on the moonlets that compose the rings of Saturn, and eat the only food source available there-mineral rocks.
Spurs Jackson; Hank Roper; Strong Bow; Professor Omok; Lousak
The Soviets are using flying saucers as guided missile transport ships to take slaves to work on Mines on the Moon. The discs are sent from a secret Soviet base orbiting just beyond the moon, where it cannot be seen. Lousak is the Soviet official in charge of the orbiting space post.
Strong Bow; Axar, Master of Mercury; Princess Karna; Laughing Frog
Strong Bow goes with Laughing Frog and another member of his Mayan tribe. They go to a Mayan pyramid in Mexico where legend has it was the last place Princess Karna was seen centuries earlier. Strong Bow and his tribesmen discover a spaceship inside the pyramid that takes Strong Bow to Mercury, where he is captured by Axar. Breaking free, he rescues Princess Karna who has not aged due to the atmosphere of Mercury.