Necromancy 90%

: The original purpose of necromancy was "sciomancy"—summoning shades to answer questions about the future.

Historically, necromancy has been both a scholarly pursuit and a forbidden rite. A Necromancer's Manual of the Fifteenth Century (review) Necromancy

At its core, necromancy centers on the belief that the dead retain agency and can act as mediators between the physical and spiritual realms. Necromancy