This book, book 5, is much darker than the other books in the series. Ms. Darby-Lanker thinks so, too. Just ask her. For most of this book Cammie is befuddled and depressed, and she's not physically well, either. There's other depressing stuff going on around her, too. Her friends are confused and unsure how to handle it, how to handle her. Consequently, they don't do it very well. No surprise. I doubt I'd know quite what to do or say myself.
Cammie's had people after her in the past, but she's always gotten away. This time, though, she wakes up in a convent in the Alps not having any idea how she got there, where she is, or how long she's been there (four months!). She doesn't remember anything, and it's driving her crazy. Literally, a little bit. Of course Cammie and her friends try to figure everything out, and this isn't the wisest decision, as there are definitely still people who do not want this information to come out. It's another exciting adventure, but I'm hoping that the next book will lighen up a little bit. Reminds me a little of Harry Potter book 5. Just brought you down really low, right? But did JK Rowling (and Harry Potter) bounce back? YES! And I think Ally Carter and Cammie Morgan will snap back out of the doldrums in book six as well. I'd stake
Highly recommended. Enjoy!