The lightning thief by Riordan, Rick
The lost hero by Riordan, Rick
Daughter of the deep by Riordan, Rick
The maze of bones by Riordan, Rick
The battle of the Labyrinth by Riordan, Rick
The son of Neptune by Riordan, Rick
The Titan's curse by Riordan, Rick
The dark prophecy by Riordan, Rick
The Ship of the Dead by Riordan, Rick
The burning maze by Riordan, Rick
The Sword of Summer by Riordan, Rick