The 39 Clues: The Cahill Files #1: Operation Trinity Other Books in This Series

The 39 Clues: The Cahill Files #2: The Submarine Job

2012

The 39 Clues: The Cahill Files #3: The Redcoat Chase

2012

The 39 Clues: The Cahill Files #4: The Houdini Escape

2012

The 39 Clues: The Cahill Files: Silent Night

2012