Necromancy

Illustration portraying a scene from the Bible wherein the Witch of Endor uses a necromantic ritual to conjure the spirit of Samuel at the behest of Saul; from the frontispiece of Sadducismus Triumphatus (1681) by Joseph Glanvill.

Necromancy (/ˈnɛkrəmænsi/) is the practice of magic involving communication with the dead by summoning their spirits as apparitions or visions for the purpose of divination; imparting the means to foretell future events and discover hidden knowledge. Sometimes categorized under death magic, the term is occasionally also used in a more general sense to refer to black magic or witchcraft as a whole.