This was so good! It may not look very good and if my English teacher hadn't made us read it....I would have never read it. The cover is so dull and the description on the back wasn't that capturing. But the book was just amazing! I love the characters, Doon and Lina and the setting in Ember. Some parts of the book was sort of predictable and some parts just came like...BOOM! I had no idea it was coming. My favourite part was when Doon and Lina was decoding the letter on chapter thirteen. It was so cool and I was decoding some of the message myself and guessed sometimes very similar to what Lina or Doon guessed, and sometimes I was way off. But if you ever have no book to read or you're bored, READ THIS BOOK! You will not regret it for sure!!