Watson, Jude <br/><br/>
In too deep / 
by Jude Watson. 
 - 1st ed. 
 - New York :  Scholastic Inc,  2009. 
 - 206 p. 
 - The 39 clues. Book six .
<br/><br/><label>ISBN: </label>9780545060462 
<br/><br/><label>LCCN: </label>2009926379 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Family history--Fiction.<br/>Cryptography--Fiction.<br/>Genealogy--Fiction.<br/>Mystery and detective stories.