166 pages
English language
Published June 27, 1998 by Scholastic.
The Unknown (Animorphs, Book 14)
Katherine A. Applegate: The Unknown (Animorphs, Book 14) (1998, Scholastic)
- ISBN:
- 978-0-590-66541-4
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Having learned that someone has discovered proof of alien life and hidden the proof on the top-secret base called Zone 91, Cassie and the Animorphs struggle to keep the evil Yeerks away from the place.