3.5 stars 
 It was a good reading and I enjoyed the whole world building, but the book could have been more captivating if the emotions and feelings were more analyzed, especially those of Kestrel... Sometimes I couldn't feel what she felt, her emotions were sporadics... Instead I really liked Arin, his feelings grew more and more and I saw the love he felt for her... But I'm a little sad because I had high expectations which were not all satisfied... However I'll read the second one hoping that it'll be more emotional.