Riordan, Rick <br/><br/>
Heroes of Olympus :   the lost hero 
 The lost hero 

 - London :   Puffin,   2010 
 - 554 p.  
<br/><br/> Jason, Piper, and Leo, three students from a school for "bad kids," find themselves at Camp Half-Blood, where they learn that they are demigods and begin a quest to free Hera, who has been imprisoned by Mother Earth herself. 
<br/><br/><label>ISBN: </label>9780141325491 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mythology, Greek--Juvenile fiction<br/>Camps--Juvenile fiction<br/>Hera (Greek deity)--Juvenile fiction<br/>Monsters--Juvenile ficiton