"written by Roderick Hunt ; illustrated by Alex Brychta." <br/><br/>
The lost key 

 -  ,Oxford [Oxfordshire]; Oxford University Press  2012 
 - 32 
<br/><br/><label>ISBN: </label>9780198483083 
<br/><br/><label>Dewey Class. No.: </label>F823  / 3302640