The Lightning Thief: The Graphic Novel

By: Rick Riordan, Robert Venditti

The Demigod Files

By: Rick Riordan

The Son of Sobek

By: Rick Riordan

The Lightning Thief

By: Rick Riordan

The Mark of Athena

By: Rick Riordan

The Lost Hero

By: Rick Riordan

The Son of Neptune

By: Rick Riordan

The House of Hades

By: Rick Riordan