Kass, Mallory. <br/><br/>
The black book of buried secrets / 
introduction by Rick Riordan ; [written by Mallory Kass]. 
 - Library ed. 
 - New York :  Scholastic,  2010. 
 - 184 p. :  ill. (some col.) ;  20 cm. 
 - 39 clues .
 - 39 clues. .
<br/><br/> Explores the hidden facts, dangerous missions, top agents, and secret hideaways of the Cahill family's desperate hunt for the thirty-nine clues that will lead them to the secret of world domination. 
<br/><br/> 6.3.  3-6  Follett Library Resources. 
<br/><br/><label>ISBN: </label>054530962X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Family life--History--Fiction.<br/>Cryptography--Fiction.<br/>Genealogy--Fiction.<br/>Mystery fiction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Code and cipher stories.<br/>Mystery fiction.
<br/><br/><label>Dewey Class. No.: </label>[Fic]