39 Clues Book 5: 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.

And now the Vespers have landed their most serious blow yet – a blow that strikes at the very heart of the Cahill family. Because Amy and Dan discover that there’s a Vesper mole in their innermost circle. Amy and Dan need to smoke out the traitor before the next hostage dies. They have just days to discover who has their back . . . and who wants to sink a knife into it."- From Amazon

Trust No One Info

• Publisher: Scholastic Inc.
• Pages: 192
• Release Date: December 4 2012
• Source: Amazon 

Ah, The 39 Clues, this series has been getting darker and darker, and more enveloped in the great mystery of Gideon Cahill. In my opinion, its about time the 39 Clues got a more intense twist to it, it makes it more appealing for an older audience. (me)