Riordan, Rick <br/><br/>
Percy Jackson : the demigod files 

 - London :  Penguin random house UK ,  2013 . 
 - 170 pages :  20 cm. 
 - Percy Jackson and the Olympians .
<br/><br/> uitable for all young demigods, this book looks at the world of demigods that no regular human child is allowed to see. 
<br/><br/><label>ISBN: </label>9780141331461 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English – Fiction Book
<br/><br/><label>Dewey Class. No.: </label>F 823  / RIO-P