Abbott, Tony. <br/><br/>
The riddle of Zorfendorf Castle  
by Tony Abbott ; illustrated by David Merrell. 
 - New York :  Scholastic,  c2005. 
 - 124 p. :  ill. ;  20 cm. 
 - Secrets of Droon ;  25 .
 - Abbott, Tony.  Secrets of Droon ;  25. .
<br/><br/> "A Little Apple paperback." 
<br/><br/> Eric and his friends learn that Zorfendorf Castle holds a secret which they must prevent from falling into the hands of Emperor Ko. 
<br/><br/> RL3.  007-010. 
<br/><br/><label>ISBN: </label>0439671736 (pbk.)  3.99 1415582114 (BWI bdg.) 
<br/><br/><label>Standard No.: </label>9780439671736 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Droon (Imaginary place)--Juvenile fiction.<br/>Castles--Juvenile fiction.<br/>Secrets--Juvenile fiction.<br/>Emperors--Juvenile fiction.<br/>Magic--Juvenile fiction.<br/>Droon (Imaginary place)--Fiction.<br/>Castles--Fiction.<br/>Secrets--Fiction.<br/>Kings, queens, rulers, etc.--Fiction.<br/>Magic--Fiction.<br/>Fantasy.
<br/><br/><label>Dewey Class. No.: </label>[Fic]