Blyton, Enid <br/><br/>
The Secret Seven  Secret Seven on the Trail  
Enid Blyton 
 - UK  Hodder & Stoughton  c2018 
 - 137p; 
<br/><br/><label>ISBN: </label>9781444936575 
<br/><br/><label>LC Class. No.: </label>PZ7.31  / .BLY 2018