This YA thriller kept me up reading one night till 3 AM. Haddix kept me flipping pages for hours totally unable to go to bed and forget the story. I couldn't decide for a long time if I was more horrified that Bethany's parents would basically dump her at an unknown relative's home with no explanation or if the why of the whole story was more terrifying. For that reason, I waited a few days to write a review. While this story may be a bit intense for younger teens, Haddix completely nailed the reaction of the nearly 13 year old protagonist. She alternates from being a scared little girl to being totally determined to find out what has changed her life as she knows it. In a matter of days, she discovers that what she knew about her parents or for that matter about herself may not be quite as black and white as the horrifying truth is reveled.