The fortress of the treasure queen /
by Tony Abbott ; illustrated by David Merrell ; cover illustration by Tim Jessell.
- New York : Scholastic, c2004.
- 115 p. : ill. ; 20 cm.
- Secrets of Droon ; 23 .
- Abbott, Tony. Secrets of Droon ; #23. .
"A Little Apple paperback."
Eric and friends are forced to ask their worst enemy, Lord Sparr, for help when Ko regains power and tries to destroy Jaffa City with a lightning-powered submarine discovered in a secret fortress. #23