This was one of the ARCs I got at BEA this past June. I took it because it sounded interesting, and it was a good read. I debated between a 4 and 5 when I first rated it, but since then I've decided to stick with the 4, and I'll explain why in a bit.Our main character is 17-year-old Penryn, yeah, kind of a strange name, and a little weird to say in my head as I was reading. But unique! We begin in the future, after the angels have come to Earth and attacked humans. We don't know why they did this, or why some people are still alive, like Penryn and her mother and sister. They have decided to leave their home in search of a better, maybe even safer place to live. Her sister Paige is in a wheelchair. So that is one obstacle to travel. Another obstacle, is that they must travel during the night. The daytime is now when the human gangs are in charge. At night of course people are more scared because of the dark, and angels, etc. So as they start out, they get just a little ways when all of a sudden they see an angel come crashing down, being chased by other angels. The ones ganging up on this angel cut his wings off. Penryn feels that she must try to help, and so jumps out for a distraction, also hoping her mom and sister can get away while she distracts them. Unfortunately, Penryn's mom is a bit out of it, and doesn't think to grab Paige's wheelchair. So as Paige tries to get away on her own, one of the angels grabs her out of her wheelchair and flies away with her. Penryn now must find her sister, and obviously her mother won't be any help. So she decides that she must keep track of this angel and use him to get her sister back. She takes his wings as something to try to hold over him. Which does work. The angel is Raffe. He doesn't want her help, but ends up finally giving in to a point. They travel to where he says her sister will be. Getting kidnapped at one point by a human resistance group. Luckily they have the sense to hide Raffe's wings, and when he's dressed, you can't tell he is an angel, other than just how drop dead gorgeous he is. Eventually they are able to get away from the resistance group, but they have gotten some info and made some friends here who will be helpful when they reach their final destination.I won't give anymore away. Just to say that I like that Penryn's character is a strong girl. She's had to be, her home life wasn't great. You get to find that out through the story. The attraction/bond between her and Raffe unfolds at a reasonable pace. It's obvious she would be attracted to Mr. Perfection in looks. He has a bit of a sarcastic sense of humor that I liked as well. But he doesn't seem to care for her quite to the same degree, but enough to save her several times. I'm glad to hear that this is a sequel, as the ending leaves you really hanging.I don't quite understand what the angels are doing in their lab at the final destination, I really am interested in the reasoning behind that. Also, Raffe thinks he'll get other angels to put his wings back on, and I want to see what happens with what they do to him at that point. A good story, but once again, reading it before it is published only makes it that much more torture to now have to wait for the next book in the series to be released.