Morphing into killer whales, the Animorphs discover a whole new world where humans with gills exist in the deep waters below. When the Animorphs morph into killer whales to battle a Yeerk ship, they make a startling discovery: an underwater civilization of mutated humans with both gills and lungs....
Book Details
- Author: K. A. Applegate
- Series: Animorphs
- Language: English
- Publisher: Scholastic
- ISBN13: 439106753
- Age Group: 10 and Below