Necromancy

Necromancy (/ˈnɛkrɵˌmænsi/) is a claimed form of magic involving communication with the deceased – either by summoning their spirit as an apparition or raising them bodily – for the purpose of divination, imparting the means to foretell future events or discover hidden knowledge. The term may sometimes be used in a more general sense to refer to black magic or witchcraft.