This book completely took me by surprise. I was expecting an awesome science fiction story, and while I got that, I also got a heart wrenching emotional tale about two sisters trying to hold on to each other during a long and horrible war. It was magnificent. The action scenes were just simply phenomenal; there were tons of fighting and piloting sequences that kept me on the edge of my seat throughout the whole book. And the characters, particularly the two main protagonists, were mindfully crafted and allowed me to identify with both of them on numerous occasions. Onyii in particular was a great character in that I got to watch her grow and and come into her own as she tried to take care of her sister. A wonderful sci fi family novel!