Riordan, Rick <br/><br/>
Heroes of Olympus the Demigods Diaries / 
Riordan, Rick 
 - 1st edition 
 -  Penguin Puffin (UK) , 
<br/><br/><label>ISBN: </label>9780141344379 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children Books
<br/><br/><label>Dewey Class. No.: </label>813.6  / RIO