Plot

the
Enslavers

From a far galaxy the Narks had come, hungering for the tempting green planet called Earth.
First they invaded the mind of the world's greatest scientist, Erasmus Brockner. Then they had him build them an impregnable fortress deep in the Nevada mountains. From this hidden lair went their human slaves, fanning out like a contagion over the globe.
The Narks were ready for the final step in their monstrous design, when a man named Valthor stumbled onto the truth—and swore to defeat them or die .. .