Rick Riordan

Rick Riordan is a character in 0 books.

The Sea of Monsters
The Dark Prophecy
Percy Jackson and the Bronze Dragon
Percy Jackson: The Demigod Files
Percy Jackson and the Lightning Thief - The Graphic Novel
The Sea of Monsters: The Graphic Novel
The Battle of the Labyrinth: The Graphic Novel
The Red Pyramid: The Graphic Novel
El Mar de Los Monstruos
Demigods and Monsters: Your Favorite Authors on Rick Riordan's Percy Jackson and the Olympians Series