Korman, Gordon. <br/><br/>
One false note / 
[by] Gordon Korman. 
 - New York :  Scholastic,  2008. 
 - 174 p. :  ill., music ;  20 cm. 
 - 39 clues ;  bk. 2 .
 - The 39 clues ;  bk. 2 .
<br/><br/> Dan and Amy Cahill travel to Vienna, Austria, where a piece of Mozart's sheet music contains the code they must decipher to find the next clue. 
<br/><br/> 4-7.  9-12.  U  Guided Reading Level.  680  Lexile. 
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<br/><br/><label>ISBN: </label>9780545090605 0545090601 9780545060424 0545060427 
<br/><br/><label>LCCN: </label>2008926487 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Siblings--Fiction.<br/>Family life--Fiction.<br/>Mystery fiction.<br/>Adventure fiction.
<br/><br/><label>Dewey Class. No.: </label>Fic