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.
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!
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...
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.
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.
Conan the Barbarian is employed by one of the civilized countries to help in it's push to claim lands from the primitive Picts. The Picts are not excited about the idea however. Old gods and mythical creatures are called up by the Pict witches to contest the invading army and Conan finds himself battling for his life amid the blood thirsty hordes that include saber-toothed tigers, 40 foot long venomous snakes and a demon from another dimension who is intent on crushing him.
We have said that there are many and strange shadows, memories surviving from dim pasts, in this FANTASTIC UNIVERSE of ours. Poul Anderson turns to a legend from the Northern countries, countries where even today the pagan past seems only like yesterday, and tells the story of Cappen Varra, who came to Norren a long, long time ago.