Survival (Species Imperative #1) Hardcover – May 4, 2004 by Julie E. Czerneda
Book 1 of 3: Species Imperative
 
When her Field Base is mysteriously attacked, Dr. Mackenzie Connor must flee for her life. Joining forces with an alien archaeologist, she escapes to his planet on a quest to find a defense against the unknown agressor-before they launch a full-scale invasion of Earth.
 
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