Blyton, Enid <br/><br/>
Puzzle for the secret seven / 

 - London;  Hodder Children's Books;  2009. 
 - 138 pages;  illustrations;  20 cm. 
 - The secret seven .
<br/><br/> Juvenile  title of the book 
<br/><br/><label>ISBN: </label>0340569891 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Juvenile works; Mystery Fiction--London
<br/><br/><label>Dewey Class. No.: </label>EJF BLYT