Blyton, Emid <br/><br/>
Mystery of the strange messages 

 - London:  Hodder Children's Books,  1943 
 - 15V, v14, 211 p.  
 - The Mystrey Series .
<br/><br/><label>ISBN: </label>9781444955293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Film & TV
<br/><br/><label>Dewey Class. No.: </label>823.912  / B629MS