Negotium Perambulans is a short story by british writer E. F. Benson.
It details the tale of a man, who, as a child, comes to an isolated fisher villiage in West Cornwall and is enchanted with it. He stays at his uncles house during this entiere time, hearing his uncle (who is a vicar) give sermons that are especially teryfiyng, mostly when refering to a couple of painted panels, on which is detailed the horrible death of a sacriligeous person at the hands of of a horrible creature. The panel bears the following biblical text:
"Negotium perambulans in tenebris," mistakenly translated as "the pestilence that walketh in darkness" and coming from the ninety first psalm.
The man as a boy eventualy moves to London and only when his education is complete, he returns, villing never to leave again.
As he learns from his widowed aunt, the person, who possesed the house, on whose grounds the murder described in the church panel.
The man had died, after one night loosing the light with whose possesion he became obssesed and was found dead, as a sack of skin and bones, with all blood drenched from him.
The young man then meets an old aquatance of his, an artist, who now lives in the cursed house. Everything on him and his drawings repel and also atract the young man and thusly, he visits his home. A short while after, he is found by the young man in darkness, cornered by the horrible thing. The young man tries to fight it of, but he cannot harm it and he cannot prevent it from reducing the artist to but skin and bones.
The young man leaves, resolute never to see his beloved villiage again.