CAROLYN KEENE <br/><br/>
The clue of the black keys 
CAROLYN KEENE 
 - New York   Grosset & Dunlap  1996 
 - vii, 174 pages;  illustrations   19cm.  
<br/><br/>  Nancy Drew mystery book where Nancy assists archaeologist Terry Scott in locating a missing professor (Dr. Pitt) and a buried treasure in Mexico. 
<br/><br/><br/>English  
<br/><br/><label>ISBN: </label>978-0-448-09528-8 
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