3.5 Stars 
 Overall this book was enjoyable but since finishing it and collecting my thoughts, there's been something holding me back from bumping this rating up to 5 stars. I absolutely loved the way this book was formatted to look like a cheesy high-school yearbook not only in the inside cover that is filled with signatures but also in the first and last few pages of the book itself. The chapters are all titled after popular songs in the '80's, and anything set in the 1980's is right up my alley so I was VERY excited to jump on this book. 
 My favorite thing about the novel definitely had to be Abby and Gretchen's relationship throughout the development of the story and as the plot thickened seeing how Abby and Gretchen reacted to one another was something I never tired of seeing. I loved the fluffy moments at the start of their friendship through the tumultuous decline once the plot developed and possession played a greater role. Other characters were also interesting and seeing how they played a part in the story was nice to see but I found that I didn't care about them nearly as much as I cared about Abby and Gretchen (understandably so since they are clearly the focal point of the novel). 
 This novel was packed with many heartwarming moments and at its core is a story of friendship and perseverance..with a side of demonic possession! Also '80's cheese, SO. MUCH. EIGHTIES. CHEESE. (which I love, definitely a huge plus in my book) 
 I felt the plot to be..interesting? It's hard to say because it was somewhat slow in the beginning but I liked the buildup of the friendship and what all is happening but I felt that once it started to approach the climax everything became so fast pace that it was difficult for me to keep up with. (view spoiler)[I don't exactly know if this would be considered a spoiler but I just feel like once Gretchen starts shifting and the possession is somewhat prominent, I felt it was all speeding by and felt that the pacing of the story was altered dramatically (hide spoiler)] I had to go back and reread passages a few times because I was left confused with what had happened. (view spoiler)[The scene with Glee in the bell tower especially had me mouthing "what..??" to myself NUMEROUS TIMES!! (hide spoiler)] And once things were beginning to wind up, I felt that the ending was a bit rushed and left many questions unanswered and too many loose ends that weren't tied up, especially for this to be a standalone novel. 
 All in all, I found this to be an enjoyable read and would recommend to those who enjoy the 1980's as well as spooky exorcism stories. Some issues in plot and pacing are really the only complaints I have but those are what are keeping me at a 3.5 rating.