22 books • 4 series
Rapid Fire 5: Turbulence (The 39 Clues)
39 Clues: Cahill Files: Spymasters (39 Clues Cahill Files)
The Houdini Escape (39 Clues: The Cahill Files, #4)
The Submarine Job (39 Clues: The Cahill Files, #2)
The Redcoat Chase (39 Clues: The Cahill Files, #3)
Operation Trinity (39 Clues: The Cahill Files, #1)
39 Clues: the Cahill Files: Operation Trinity (39 Clues Cahill Files)
Rapid Fire 3: Hunted (The 39 Clues)
Rapid Fire 2: Ignition (The 39 Clues)
Rapid Fire 4: Crushed (The 39 Clues)
Rapid Fire 6: Invasion (The 39 Clues)
Rapid Fire 7: Fireworks (The 39 Clues)
Rapid Fire 1: Legacy (The 39 Clues)
Ignition (The 39 Clues: Rapid Fire, #2)
Legacy (The 39 Clues: Rapid Fire, #1)
Invasion (The 39 Clues: Rapid Fire, #6)
Turbulence (The 39 Clues: Rapid Fire, #5)
Fireworks (The 39 Clues: Rapid Fire, #7)
Crushed (The 39 Clues: Rapid Fire, #4)
Hunted (The 39 Clues: Rapid Fire, #3)
A Village Blacksmith
A Misstep in Time