Long before alarms, cameras, and motion lights, homes were protected through ritual. Across Europe, Appalachia, Latin America, and folk Catholic traditions, people used salt, iron, smoke, herbs, bells, candles, and protective symbols to guard the household from spiritual harm, envy, illness, and wandering forces believed to cross the threshold. Doors, windows, fireplaces, and bedsides were treated as vulnerable spaces where the unseen world could enter ordinary life. These customs were not simply superstition—they were systems of spiritual boundary-making that transformed ordinary household objects into acts of protection. In The Dark Archive, we explore the forgotten logic behind ancient household wards, symbols, and protective folk traditions.