Horror fiction is a genre built on dread. It uses fear, shock, and the uncanny to unsettle readers and probe the boundary between the familiar and the monstrous. Horror ranges from slow-burn psychological unease to visceral supernatural terror, encompassing gothic mansions, haunted houses, possessed children, cosmic entities, vampires, ghosts, serial killers, and the darker corners of the human mind. What unites the genre is intent: horror wants you afraid. At its best, horror uses that fear to examine grief, guilt, trauma, and the anxieties of the era in which it was written - illness, technology, war, or loss of control over one's body and home.