Blyton, Enid <br/><br/>
Five have a wonderful time 

 - London  Hodder Children's  1997 
 - 201 
 - Famous Five .
<br/><br/> "The Famous Five are on holiday in horse-drawn caravans - and they've discovered a ruined castle nearby! But the castle isn't empty - the Famous Five have seen a desperate face at the tower window! Whi is hiding in the castle?"--Back cover 
<br/><br/><label>ISBN: </label>9780340681169 
<br/><br/><label>Dewey Class. No.: </label>823  / BLY-F