Jones, Diana Wynne. <br/><br/>
Dark Lord of Derkholm / 
Diana Wynne Jones. 
 - 1st ed. 
 - New York :  Greenwillow Books,  c1998. 
 - 345 p. ;  24 cm. 
<br/><br/> Derk, an unconventional wizard, and his magical family become involved in a plan to put a stop to the devastating tours of their world arranged by the tyrannical Mr. Chesney. 
<br/><br/><label>ISBN: </label>0688160042 
<br/><br/><label>LCCN: </label>97032661 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fantasy.<br/>Magic--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.J684  / Dar 1998 
<br/><br/><label>Dewey Class. No.: </label>[Fic]