Blyton, Enid <br/><br/>
Five have plenty of fun 

 - London  Hodder Children's  2001 
 - 250 
 - Famous five .
<br/><br/> George is not pleased when Berta, a spoilt American girl, turns up at Kirrin Cottage in the middle of the night - dressed in disguise! But George hasn't got time to be jealous. Berta is in hiding from kidnappers, and she needs help 
<br/><br/><label>ISBN: </label>9780340796283 
<br/><br/><label>Dewey Class. No.: </label>823  / BLY-F