Clifford Riley Books in Order

The Cahill Files Books in Order

1. The 39 Clues: The Cahill Files #1: Operation Trinity (2012)
2. The 39 Clues: The Cahill Files #2: The Submarine Job (2012)
3. The 39 Clues: The Cahill Files #3: The Redcoat Chase (2012)
4. The 39 Clues: The Cahill Files #4: The Houdini Escape (2012)
5. The 39 Clues: Cahill Files: Silent Night (2012)



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