Riley Clifford

• The 39 Clues
• The 39 Clues: Rapid Fire #1: Legacy
• The 39 Clues: Rapid Fire #2: Ignition
• The 39 Clues: Rapid Fire #3: Hunted
• The 39 Clues: Rapid Fire #4: Crushed
• The 39 Clues: Rapid Fire #5: Turbulence
• The 39 Clues: Rapid Fire #6: Invasion
• The 39 Clues: Rapid Fire #7: Fireworks