Trust no one by Linda Sue Park

The 39 Clues. Scholastic, 2012. ISBN 9780545298438.
(Age 12+) Highly recommended. The 39 Clues: Trust No One is book 5 in the series involving 13 year old Dan and his older sister Amy. Dan and Amy's family were kidnapped by a group called The Vespers. To get them back, Dan and Amy are sent instructions to steal things from around the world. This series is highly recommended to avid, independent readers aged at least 12 years or older. The language used is descriptive and exciting but a wide range of vocabulary and a good understanding will be needed to read some parts.
I would also recommend reading the series from the beginning rather than just picking up this book only. Within the first 20 pages, events from previous books are mentioned and having this prior knowledge will help with understanding - especially when it comes to getting to know the characters better. Reading the series from the beginning would have given me a better sense of who the characters are and why The Vespers have kidnapped members of the Cahill family in the first place.
This book has Amy, Dan and their friends in New York. The instructions have them after an ancient document but meanwhile one of their other friends has discovered the mole in their organisation is actually a close friend of them all. Will this friend end up hurting them? What are their reasons for this friend switching sides? Will the Cahill's be able to flush out this mole before another family member is killed?
Kylie Kempster