This story has such a unique concept, yet I felt it was lacking in execution. The main character, Aza, has a respiratory condition so rare that it's named after her. We come to learn that she's not of this earth, a sort of human-bird hybrid species that live in our skies. Following her revelation and learning of her new world, you would think it'd be an amazing adventure to read about. Alas, I felt as if too much complicated detail was foisted upon me in a short amount of time. I wasn't caught up in any of the drama, and there was little character development beyond Aza and Jason - her love back on earth. I like the bird imagery, but I really, really don't like live birds in general. So, it was hard to get into a story about bird people. *shudder*