Bothwell, Jean <br/><br/>
The emerald clue. 

 - [1st ed.] 
 - New York  Harcourt, Brace & World  [1961] 
 - 191 p.  illus.  21 cm. 
<br/><br/><label>LCCN: </label>61012341  
<br/><br/><label>LC Class. No.: </label>PZ7.B654  / Ek