The Legion of Space
by Jack Williamson | 
Eater
by Gregory Benford | 
Earthblood
by Keith Laumer | 
Moonwar
by Ben Bova | 
We Are Legion
by Dennis E. Taylor | 
Beyond Infinity
by Gregory Benford | 
Jupiter Project
by Gregory Benford | 
Android at Arms
by Andre Norton | 
Arc of the Dream
by A. A. Attanasio | 
Alien Art
by Gordon R. Dickson | 
Stars' End
by Glen Cook | 
Saturn
by Ben Bova | 
To the Stars
by Harry Harrison | 
Inherit the Stars
by James P. Hogan | 
Coalescent
by Stephen Baxter | 
A Season for Slaughter
by David Gerrold | 
A Day for Damnation
by David Gerrold |
The World of Star Trek
by David Gerrold | 
A Rage for Revenge
by David Gerrold | 
The Martian Child
by David Gerrold |
With the human population ravaged by a series of devastating plagues, the alien Chtorr arrive to begin the final phase of their invasion. Even as many on Earth deny their existence, the giant wormlike carnivores prepare the world for the ultimate violation--the enslavement of humanity for food!