Paperback, 208 pages
English language
Published Jan. 23, 1999 by Scholastic.
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Tobias and his friends, a group of young people who have given the power to morph into animals in order to aid the alien Andalites in their battle against the evil Yeerks, face a life-and-death situation when Visser Four, a leader in the Yeerk invasion, finds a time machine.
Subjects
- Extraterrestrial beings -- Fiction
- Science fiction