"The Dunwich Horror" is a short story by H.P. Lovecraft, first published in 1929. It is set in the fictional town of Dunwich, Massachusetts, and follows the strange events surrounding the Whateley family, particularly the monstrous offspring of Wilbur Whateley and an otherworldly entity. The story explores themes of forbidden knowledge and the consequences of tampering with the unknown. The narrative reveals the terror that unfolds as the creature, invisible to the naked eye, wreaks havoc on the town. Local residents, including Dr. Armitage from Miskatonic University, attempt to confront the horror, leading to a climactic battle against the dark forces unleashed by the Whateley family.