It's a winter night. You're returning home by train. It's been a long time since you've been there. You just have to transfer to another train. Just a moment's wait at a small train station in the middle of the forest.
You're familiar with this - it's not the first time you've traveled this route. However, this time, a strange uneasiness accompanies you. Something is different. Something is not right.
“We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far.”
- H. P. Lovecraft