"A mysterious map. An underground adventure."
- ISBN10 061372030X
- ISBN13 9780613720304
- Publish Date 1 February 2003
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Pages 184
- Language English