Necromancy

Necromancy is a form of magic intended to manipulate the dead, whether this means seeing the Underworld, forcing ghosts to do the caster's bidding, etc.

Did you mean:
 * Necromancy employed by some vampire clans in Vampire: The Masquerade?

Background Information

 * According to some unpublished material written for Ascension, the reason the Giovanni, Orphic Circle, and other necromantic organizations in the Old World of Darkness ultimately wanted to tear down the Veil was because the very concept of Necromancy was memetically poisoned by Voormas in order to hasten the the destruction of the Cycle of creation.