The 39 Clues: The Cahill Files

Operation Trinity by Clifford Riley

Operation Trinity

The 39 Clues: The Cahill Files #1

Clifford Riley

144 pages • hardcover • 2012

fiction mystery young adult dark mysterious fast-paced
The Submarine Job by Clifford Riley

The Submarine Job

The 39 Clues: The Cahill Files #2

Clifford Riley

90 pages • digital • 2012

fiction mystery young adult adventurous lighthearted mysterious slow-paced
The Redcoat Chase by Clifford Riley

The Redcoat Chase

The 39 Clues: The Cahill Files #3

Clifford Riley

90 pages • digital • 2012

fiction young adult adventurous lighthearted fast-paced
The Houdini Escape by Clifford Riley

The Houdini Escape

The 39 Clues: The Cahill Files #4

Clifford Riley

90 pages • digital • 2012

fiction childrens young adult adventurous lighthearted fast-paced
Silent Night by Clifford Riley

Silent Night

The 39 Clues: The Cahill Files #5

Clifford Riley

90 pages • digital • 2012

fiction middle grade mystery adventurous mysterious slow-paced