Keene, Carolyn <br/><br/>
The clue in the crossword cipher 

 - New York, :  Grosset & Dunlap  [1967] 
 - 177p. :  illus. ;  20cm. 
 - Her Nancy Drew mystery stories .
<br/><br/><label>ISBN: </label>0448095440 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children's stories
<br/><br/><label>Dewey Class. No.: </label>F KEE