I really liked the previous books in the series, but this felt like an inadequate ending to the series. (Light, non-detailed spoilers ahead)

about halfway through the book, we learn who the DT killer is, and the turn the book takes from there is jarring. Pip was set up as a brilliant young woman, and the actions she takes don't feel like they track with her character from previous books. It's understandable, but seems highly illogical even with her explanation of her decisions.

Detailed spoilers below:

I loved that Jason Bell was the DT Killer, but I hated everything after Pip escaped and decided to turn back and kill him and then pin it on Max Hastings. I hated Max, he was written to be incredibly hateable and explicitly bad, but setting him up to take the fall for killing Jason just doesn't feel satisfying to me. The decision will haunt Pip forever, and she's already struggling with her mental health after seeing Stanley die in the previous book, so it doesn't make sense to me that she's going to be okay with this for the rest of her life. I'm really disappointed with how this ended honestly, and I wish I'd liked it more.