Goodreads.com Synopsis: The last thing Cammie Morgan remembers is leaving the Gallagher Academy to protect her friends and family from the Circle of Cavan--an ancient terrorist organization that has been hunting her for over a year. But when Cammie wakes up in an alpine convent and discovers months have passed, she must face the fact that her memory is now a black hole. The only traces left of Cammie’s summer vacation are the bruises on her body and the dirt under her nails, and all she wants is to go home. Once she returns to school, however, Cammie realizes that even the Gallagher Academy now holds more questions than answers. Cammie, her friends, and mysterious spy-guy Zach must face their most difficult challenge yet as they travel to the other side of the world, hoping to piece together the clues that Cammie left behind. It’s a race against time. The Circle is hot on their trail and willing stop at nothing to prevent Cammie from remembering what she did last summer.
Christina's Review: Book 5 is the best yet. You will read it and be so excited for book 6 (which Ally Carter has not yet started). Ally Carter plans on this series being 6 books. Every book gets better and better. I am so excited to read the conclusion of the series. Cammie can't remember anything from her summer. She gets back and everyone is so mad at her for running away. You feel for her as she feels like she is losing her best friends and her boyfriend. This book takes us on a search for her memory, for answers and it does not disappoint. This is such a great read!!! I am a huge Ally Carter fan. This is a series I recommend whenever I am asked what is a good book to read. While you are waiting for book 6 you should check out her other series which includes: Heist Society and Uncommon Criminals (book 3 in this series Perfect Scoundrels comes out in February 2013)