Freshly graduated and commissioned Planeteer Lt. Rip Foster is tasked with retrieving an asteroid made of pure thorium from the asteroid belt and bringing it to Earth for use as fissionable material. But the totalitarian Connies have their own plans for the asteroid...
After eleven years in space, the Argo landed on the dangerous, unknown planet Lucifer. The crew faced an untamed world of huge, carnivorous birds with wolverine heads and flashing black teeth; furred, ten-foot-tall men; and red-skinned, man-eating pygmies. They fought for mere survival. But their duty was to colonize and populate the planet... with four men and only two women!
The Earth has forcibly been taken from its orbit. It began with an extra-terrestrial pyramid on top of Mt. Everest. And then a "runaway planet" took the Earth as its binary. And now harsh generations have passed since the inhabitants last saw the light of their sun, Sol. Society has grown rigid. The meek lambs have inherited the Earth, even it's a very poor Earth, indeed.
The Throg task force struck the Terran survey camp a few minutes after dawn, without warning, and with a deadly precision which argued that the aliens had fully reconnoitered and prepared that attack. Eye-searing lances of energy lashed back and forth across the base with methodical accuracy. And a single cowering witness, flattened on a ledge in the heights above, knew that when the last of those yellow-red bolts fell, nothing human would be left alive down there.
The story is described as a "duel of the cosmic magicians." It involves two witch doctors who conjure up ghosts and demons against each other and might appear to be fantasy. But Norton bases the wizards' magic on the use of mildly hallucinogenic drugs, psychological manipulation and latent telepathy, which place the story within the realm of science fiction.
A Pellucidar Story (1) David Innes, a man with a remarkable story to tell, is a mining heir who finances an experimental "iron mole," an excavating vehicle designed by his elderly inventor friend Abner Perry. In a test, they discover the vehicle cannot be turned. It burrows 500 miles into the Earth, emerging into the unknown interior world of Pellucidar.