This is a compelling story and I wish I could see more of it. Some excellent writing here. A little thing I enjoyed was counting the seconds between lightning and thunder--how nostalgic!
Having to go back through some of the stuff in the cabin was an interesting choice, and not necessarily a bad one, but I did get the feeling I was stuck for a fleeting moment. Maybe a very small, very subtle clue would help.
Overall, I really liked this game. Great work!