Phase IV — Barry N. Malzberg

Triumphant from a fifteen thousand year battle in space, a bolt of energy reached the third planet of a Class B star. A new life force spawned seven grey towers in the Arizona desert.

Now, from out of their dark mysteries marches a new breed of killer ants to herald the dawn of Phase IV...

In their path wait two men, a frightened girl and the resources of modern science. Mankind's first line of defense-and its last...

Novelization based on a story and screenplay by Mayo Simon.