DuPrau, Jeanne. <br/><br/>
The diamond of Darkhold / 
Jeanne DuPrau. 
 - 1st ed. 
 - New York :  Random House,  2008. 
 - 285 p. :  ill., map ;  22 cm. 
<br/><br/> "The fourth Book of Ember"--Cover. 
<br/><br/> School Library Journal, November 2008  Horn Book, April 2009  Kirkus Review, July 2008 
<br/><br/> After obtaining an ancient book with only a few pages remaining, Lina and Doon return to Ember seeking the machine described in the book that might be able to aid their new community, Sparks, through the winter. 
<br/><br/> 5.3  5-8  Follett Library Resources 
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<br/><br/><label>ISBN: </label>0375855718 
<br/><br/><label>LCCN: </label>2007047929 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fantasy fiction.<br/>Good and evil--Fiction.<br/>Messengers--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.D927  / Dic 2008 
<br/><br/><label>Dewey Class. No.: </label>[Fic]