The Haunter of the Dark by H.P. Lovecraft
A writer's fascination with a mysterious, abandoned church leads to his doom when he awakens a dark, otherworldly entity. The narrative emphasizes fear of the unknown, the fragility of human curiosity, and the cosmic terror lurking just beyond human perception.

H.P. Lovecraft (1890–1937) was an American writer of cosmic horror, known for creating the Cthulhu Mythos. His works, including The Call of Cthulhu and The Shadow Out of Time, explore cosmic dread, ancient beings, and the insignificance of humanity, influencing modern horror literature.