Five Sentence Fiction

From Lillie McFerrin Writes:

What it’s all about: Five Sentence Fiction is about packing a powerful punch in a tiny fist. Each week I will post a one word inspiration, then anyone wishing to participate will write a five sentence story based on the prompt word.

The word does not have to appear in your five sentences, just use it for direction.

This week: Doors

***

It’s out there again.

What it is, I have no idea.

Its force presses against my creaking front door.

I saw nothing in my windows.

Is it man, beast or nature?