I was really bummed when I finished this book. I thought this was the third book in a trilogy. I should have paid more attention. It is the third book of the The Lunar Chronicles. I guess there are four books in a chronicle.
That being said, I did really like the book. I'm enjoying this series. I just wish I'd know there were going to be four books. Now I have to wait until next year to finish the story. These first three were great being read right after the other (actually I read the first and listened to the last two. The books on CD are read by a really great reader.) SO maybe wait until next year, mark them as "to read" on Goodreads and then make sure you do.
next up - Winter.