It's not what you expect to see when you're calmly walking down a school corridor. A boy carrying a piece of Andalite morphing technology. Marco and the other Animorphs have to get the Andalite blue box off David - he may have no idea what it is but the Yeerks do. And they'll do anything to get it. Part one of a trilogy.
- ISBN10 0439011795
- ISBN13 9780439011792
- Publish Date 15 October 1999
- Publish Status Out of Print
- Out of Print 25 February 2010
- Publish Country GB
- Imprint Scholastic
- Format Paperback (B-Format (198x129 mm))
- Pages 160
- Language English