Blyton, Enid <br/><br/>
Secret Seven mystery / 
Enid Blyton ; illustrated by Derek Lucas 
 - [Place of publication not identified] :  Swift Children's Books ,  ©1971 ,  1986. 
 - 94 pages :  illustrations ;  20 cm 
 - Secret Seven Mystery  9 .
<br/><br/><label>ISBN: </label>0859976750 (hardback) 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Youth Fiction<br/>Adventure Stories<br/>Mystery fiction<br/>Detective and mystery fiction
<br/><br/><label>Dewey Class. No.: </label>ETF BLYT