The riddle of Zorfendorf Castle /
Zorfendorf Castle
by Tony Abbott ; illustrated by David Merrell ; cover illustration by Tim Jessell.
- New York : Scholastic, c2005.
- 124 p. : ill. ; 20 cm.
- Secrets of Droon ; #25 .
- Abbott, Tony. Secrets of Droon ; #25. .
"A Little Apple paperback."
Eric and his friends must stop Emperor Ko from finding a secret hidden underneath Zorfendorf Castle. #25