Write a short story about an eldritch horror.  In the style of HP Lovecraft.
In the dark of night, I heard a sound that chilled me to the bone. It was a sound that no human could make. I knew then that I was not alone.

I turned around and saw it. It defied description. Its eyes were black as coal and its skin was like nothing I had ever seen before, undulating and oozing. I knew then that I was doomed.