Haddix, Margaret Peterson <br/><br/>
Into the Gauntlet / :  39 Clues Bk.10 / 
by Margaret Peterson Haddix. 
 - New York, New York :  Scholastic, Inc,  2010. 
 - 327 p. 
 - The 39 Clues .
<br/><br/> Throughtout the hunt for the 39 clues, Amy and Dan Cahill have uncovered history's greatest mysteries and their family's deadliest secrets.  But are they ready to face the truth about the Cahills and the key to their unmatched power? 
<br/><br/><label>ISBN: </label>9780545090681 
<br/><br/><label>Subjects--Topical Terms: </label><br/>family secrets--fiction<br/>code and ciphers--fiction