Horror fiction: Genre of writing whose purpose is to create a feeling of fear, terror, or repulsion.
Supernatural horror: Subgenre that pertains to supernatural forces, such as demons, ghosts, and spirits.
Gothic: Literary genre with a distinct dark/mysterious aura to its writing, often utilizing pseudomedieval settings (castles, mansions, etc) as its background.
Romantic period/romanticism: A literary (and artistic) movement during the late 18th and early 19th centuries that placed emphasis on emotions and nature.