Riordan, Rick.  <br/><br/>
Vespers rising /  
Rick Riordan.  
 - New York:  Scholastic,  2012.  
 - 238 p.   20 cm.  
 - The 39 clues; 11. .
<br/><br/><label>ISBN: </label>978-0545290593 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Codes and secrets. --Fiction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Mystery.