Alright, let me start off by saying that this is an excellently written novel :D
First off, the writing itself is flawless. Very smooth, descriptive, and clear. The use of punctuation is also perfect! :D
Okay now for the best part. The way the author sets up the mood is impeccable. The author did not only plainly describe the location and such, but the way the author wrote it makes me feel the mood. It was a very immersive read, which is always a great thing, especially for a thriller/horror novel.
Not only the mood, but the way the characters were portrayed is also top-notch for me. I like how the author did not focus on the appearance, but rather on small, subtle things that build up the character's traits. Like the way they move when they talk, the way they stutter, the way they react in situations, I love it! :D
Sorry for the long review, the point is I really enjoyed reading this hehe! Great work, author! <3