DuPrau, Jeanne. <br/><br/>
The diamond of Darkhold  
Jeanne DuPrau. 
 - 1st ed. 
 - New York :  Random House Children's Books,  c2008. 
 - 285 p. ;  map ;  22 cm. 
 - Book of Ember ;  bk. 4 .
 - DuPrau, Jeanne.  Book of Ember ;  bk. 4. .
<br/><br/> When a roamer trades them an ancient book with only a few pages remaining, Lina and Doon return to Ember to seek the machine the book seems to describe in hopes that it will get their new community, Sparks, through the winter. 
<br/><br/><label>ISBN: </label>9780375855719 (trade)  16.99 0375855718 (trade) 9780375955716 (lib. bdg.) 0375955712 (lib. bdg.) 9780375855726 (pbk.) 0375855726 (pbk.) 
<br/><br/><label>LCCN: </label>2007047929 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Juvenile fiction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Fantasy fiction.<br/>Science fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.D927  / Dic 2008 
<br/><br/><label>Dewey Class. No.: </label>[Fic]