Keene, Carolyn <br/><br/>
The Clue of the Black keys 
Carolyn Keene 
 -  Grosset & Dunlap 
 - 174 
<br/><br/><label>ISBN: </label>9780448095288 
<br/><br/><label>Dewey Class. No.: </label>823.0872  / KEE