We Used to Live Here

Horror thriller following Charlie and Eve who recently moved into an old house in the mountains. One day, as Eve is alone, a stranger and his family asks to come inside the house that was his childhood home. 
I really liked this debut novel, there are some true creepy moments though it didn't felt super scary to me .  I loved the main character, her anxious and people pleasing personality made the tension higher as I didn't know how she would react. 
The world building was super interesting, I loved the lore being slowly built through interviews, codes, forum posts and news articles. Sometimes though I feel something was missing, like there were some elements I wished the author would delve into, with several loose threads.   The pacing felt a bit off especially at the beginning which dragged and I felt the ending a bit abrupt (though I didn't dislike what the author went for). 
Overall a very good debut novel and I'm looking forward to the next work by this new author.