The Dead of Night (The 39 Clues: Cahills vs. Vespers, Book 3)

In the gripping third installment of the CAHILLS VS. VESPERS series, Amy and Dan face their most challenging ordeal yet as the Vespers cross a dangerous line by kidnapping Atticus, Dan's innocent 11-year-old friend. With seven Cahills already held captive, the stakes rise dramatically as the siblings must race against time to deliver an impossible ransom. Failure to outsmart the Vespers could lead to an unthinkable tragedy.