The 39 Clues: Cahills vs. Vespers Book 1: The Medusa Plot
Publisher: Scholastic Inc.
Date: August 2011
Duration: 5 hours 23 minutes
Amy and Dan find themselves in a new global race but this time, everything's different. Those closest to them might be working for the enemy, and Amy and Dan are forced to ask themselves how far they're willing to go to save the kidnapped Cahills. How much can you risk when there's no one to trust?