Excellent read, with interesting premise about an alien invasion and the aftermath. Loved the characters, the concept, the plot. There were a few heart pounding moments, when I wasn't sure I wanted to find out what happened next. I figured out a few things ahead of time; not sure if it's because I'm so darn smart, or because it was young adult and I'm not. My teens and pre-teens, are also really enjoying it. Hope there will be a sequel!