Best book of the series so far. The mystery part wasn't that complicated - I had a good idea on who's the murderer from the beginning but I will admit that I doubted myself a couple of times - but the moments between Adrien and Jake were amazing.
I think I'm starting to like Jake again, I'm still angry on a couple of things that he did but there's hope that he might get better. The ending was perfect. I can't wait to read the final book. I'm going to miss this series.