Enid Blyton <br/><br/>
Secret Seven Mystery 

<br/><br/> A girl has mysteriously run away from home and her parents are frantic with worry. Can the Secret Seven follow the clues and catch up with the girl, or will Susie, Jack's troublesome little sister, get in the way? 
<br/><br/><label>ISBN: </label>9780340917626 
<br/><br/><label>Dewey Class. No.: </label>English BLY