Creep, Shadow!

'Creep, Shadow!' is a short horror story written by Abraham Merritt in 1934. The story follows a man named Charles who moves into a mansion with a haunted reputation and begins to experience strange and terrifying occurrences. As he delves into the mansion's history, he discovers that the previous owner had practiced black magic and fears for his own safety. In the end, Charles is confronted by a shadowy figure and decides to leave the mansion, never to return. The story ends with a chilling warning that the shadowy figure may still be lurking in the mansion.