Here is this week's speculative fiction prompt. I'm labeling it as horror this week, but, as always, take it whatever direction you choose. Have fun!
You see someone standing in the window of an abandoned shack, but when you go in, there's no one there.
As always, feel free to use this in any way you choose. There's no need
to give me any credit for any story you come up with. Of course, I
never mind if you do give me credit for the writing prompt, but it's not
necessary.