Necromancy

Is Dark Magic, specifically used to contact spirits of the dead.

It can be done a few ways, mostly with Magic, but sometimes a Guju Pad can let normal people contact the dead.

Witches do a spell with Candles, and herbs. They say ", Advoca tibi perdiderit unam", witch is latin for, Let me See, Summon thee, Lost One. it then allows the witch to hear the voice of a ghost.