A Head Full of Ghosts

4/5 - I have found this book really hard to rate and I feel after I sit a while thinking about it more I will probably change my rating but overall a super quick read and absolutely loved the premise of this book! But there is something about it that is stopping me from giving it a full 5 stars.
On the surface this is a devil possession story, but it's so much more than that. Tragic tale on how the Barrett family deals with Marjorie's physiological changes with devastating consequences.
Not a particularly frightening book but it handles some very heavy topics and as someone who grew up rather religious (not anymore) I found aspects of it quite triggering, in particular John Barrett's approach to Marjorie's illness.
I've seen some reviews that where critical of the blog post aspect of this book, but I rather enjoyed them. Gave a nice break to Merry's childhood persepective of what happened during the time the film crew being in the house. But I wish it was explored more into why Merry was doing this blog post about the show anonymously, unless I missing something or am I reading too much into it.
The ending was unexpected but it didn't come as big shock, I was more intrigued by the questions it left you with, was it really Marjorie that was possessed/ill or was it actually Merry? And I just can't help but feel that Merry is a super unreliable narrator.