necromancy
noun [ U ] uk/ˈnek.rə.mæn.si/ us/ˈnek.rə.mæn.si/
通灵术，（招亡魂问卜的）巫术;妖术
the act of communicating with the dead in order to discover what is going to happen in the future, or black magic (= magic used for bad purposes)
Synonyms: black magicsorcery