While Jake and the other Animorphs try to stop Visser Three from reaching the Pemalite ship at the bottom of the ocean, they discover a strange underwater civilization.
- ISBN10 061350349X
- ISBN13 9780613503495
- Publish Date 1 February 2002 (first published 1 December 1999)
- Publish Status Out of Print
- Out of Print 13 March 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English