![Footfall (Paperback, 1986, Del Rey)](https://bookwyrm.s3.us-west-004.backblazeb2.com/images/covers/4b2735b4-2d5c-4797-9084-44f7583e2a5d.jpeg)
Footfall by Jerry Pournelle, Larry Niven
They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed …
They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed …