Warner, Gertrude Chandler. <br/><br/>
Mystery in the sand / 
[by] Gertrude Chandler Warner ; ill. by David Cunningham. 
 - Morton Grove, IL :  A. Whitman,  1971. 
 - 127 p. :  ill. ;  22 cm. 
 - The Boxcar children mysteries .
<br/><br/> A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery. 
<br/><br/> 3.  7-12.  3-7.  520  Lexile 
<br/><br/><label>ISBN: </label>0807553735 0807553727 
<br/><br/><label>LCCN: </label>70165823 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boxcar children (Fictitious characters)--Fiction.<br/>Orphans--Fiction.<br/>Siblings--Fiction.<br/>Mystery fiction.<br/>Mystery and Detective Stories<br/>Youth fiction
<br/><br/><label>Dewey Class. No.: </label>Fic