The Haunter of the Dark by H. P. Lovecraft

A writer explores a ruined church and unwittingly awakens a being that can only move in darkness. As storms gather and shadows lengthen, he becomes increasingly obsessed with what he found—and what might now be watching him. This story, a sequel to The Shambler from the Stars by Robert Bloch, explores themes of forbidden knowledge and supernatural vulnerability. The Haunter of the Dark is one of Lovecraft’s most atmospheric and suspenseful tales, ending with an unforgettable note of cosmic dread.