I'm not sure how I feel about this book, by itself I was bored out of my mind during a good chunk of it. I think my already knowing about the whole big twist about Charlie impacted how I felt about this book (and I think that any fans of the FNAF franchise will struggle to go into these books without knowing things about them if you've been involved in the fandom at all). I didn't know everything, like the thing about Ella surprised me. Still, I knew enough that I could put everything together well before I think this book expected you to.

In part of this trilogy I feel this is the weakest one, the first one had several plot points that surprised me and was just a pleasant read. It didn't fall into the 'kill side characters left and right' issue I felt it might have (something this book did and I think this also made me dislike this book). The second book heavily revolved around the Twisted Animatronics who even though I knew a lot about I also deeply enjoyed, and the whole having people be killed randomly didn't bother me as it had a reason to me (something I don't think this book had. I don't get the reasoning for several of the character deaths and or near deaths). The Twisted Animatronics were also brand new for this book so they were something to learn about we didn't already know if you are a fan of the franchise, the Fourth Closet revolved around the Sister Location and Toy animatronics so we learned nothing new about them that we didn't already know about.

I think the only thing preventing me from giving lower than a three-star is that I enjoyed the side characters and I deeply enjoyed how the books portrayed Henry. This series I'm pretty sure is the most we ever get to learn about Henry so far in the entire series and he is a character I am very curious about due to how little he is shown compared to William Afton (or as he is called in this trilogy Dave). I had considered to DNF the book around the 34% mark and I had that thought several more times throughout the book but I had forced myself to continue.