**This review contains some spoilers!** 
 This was definitely the best book in the trilogy, but I absolutely love the whole trilogy! Into the Still Blue got such big emotional reactions out of me. I laughed, cried some really ugly tears (felt good after a while of not really crying while reading) and actually screamed curse words out loud. That last one was all of Sable's doing. I hate him with a passion. (view spoiler)[I was happy when Perry finally killed him. Everybody will have much better future with him, that monster didn't even know what a heart is. (hide spoiler)] 
 Perry, Aria and Roar are mostly the ones who caused the laughing and tears, but there was one more who broke my heart. Cinder. (view spoiler)[And Molly because of naming the place after him. *actually gets teary-eyed again* (hide spoiler)] 
 Into the Still Blue really has everything I love in a book: an interesting, dystopian world, lots and lots of action, amazing and funny characters, great friendships and beautiful love. I guess even Sable made this book/trilogy better because he was the cause of many of my crazy reactions (screaming in frstration and such) and much of the action. 
 Now I can't just end this with talking about the character I absolutely hate. So Perry and Aria. Such a beautiful couple, I love their relationship. It was heart-breaking to see them separated, and when they were together they were so happy and funny and cute. Ah! And Roar. In the beginning I was sad because he was sad and because of his situation with Perry. Little by little Roar was brought back to life, and was like himself again. 
 This was an amazing conclusion to the amazing trilogy. I love a happy ending which promises a better future to characters I love so much. (view spoiler)[I also loved Aria's little surprise plans for Perry. :D I kind of wanted the last chapter be between Aria and Perry, but that little detail was enough. That pretty much told me that Aria and Perry (and all the others) will have a bright future, together. (hide spoiler)]