Prador Moon A Novel of the Polity

The Polity, a space-faring civilization ruled mostly by AIs because only they can cope with the math for the runcible operation enabling interstellar travel, has just made first contact. No one knew quite what to expect of the crablike Prador's visit to Avalon Station, though the massacre that ensued wasn't on anybody's list. Seems the bloodthirsty Prador are bent on taking over the Polity and its runcible technology.