Trust no one

When seven members of their family were kidnapped, thirteen-year-old Dan Cahill and his older sister, Amy, got ready for the fight of their lives. But their enemy, a terrifying group known as the Vespers, remained frustratingly elusive. They stay in the shadows, picking off Cahills one by one.

Main Author: Park, Linda Sue.
Other Authors: Pittu, David.
Format: Downloadable Audio
Published: [New York] : Scholastic Audio, 2012.
Physical Description: 1 online resource (1 audio file).
Edition: Unabridged.
Series: 39 clues. Cahills vs. Vespers ; bk. 5.
Online Access: Click here to access title