Day 27 ~ The Most Surprising Plot Twist or Ending

This is a really hard question... I am sure something has surprised me, but I am usually pretty good at guessing endings and plot twists ahead of time. Days from now something will pop in my mind, but at the moment I am drawing a blank... So, I am going to go with this book. The ending was the closest to surprising of anything that I have read so far this year. (If you haven't read this, you should!!)