I really liked this! Olivia and the Prior family were really interesting to follow along with, and I enjoyed this somewhat short read. The concept for this book was really cool, and I liked that it reminded me of Coraline. The artwork interwoven throughout the book was so cool, and I really liked the letters between Olivia's parents. Also, I appreciated that Olivia was not a stupid as most people in horror books/films. Very good!