Keene, Carolyn. <br/><br/>
The clue in the jewel box. 

 - New York,  Grosset & Dunlap  [1972, c1943] 
 - 181 p.  illus.  20 cm. 
 - Her Nancy Drew mystery stories, 20 .
<br/><br/> Nancy and her friends help a woman search for her missing grandson. 
<br/><br/><label>ISBN: </label>0448095203 
<br/><br/><label>LCCN: </label>72077109  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery and detective stories.
<br/><br/><label>LC Class. No.: </label>PZ7  / .K23 Nan no. 20 1972