Species II : A Novel by Yvonne Navarro - Paperback USED

Now a Major Motion Picture from Metro-Goldwyn Mayer

A genetically engineered creature that can assume any form needs only to meet astronauts returning from Mars who have become unwitting hosts to a malevolent breed of invader, to destroy humanity.

Based on a screenplay by Chris Brancato.  Based on characters created by Dennis Feldman.