Is Necromancy in-universe?

[Melichoir]

The Tamtara Deepcroft (Hard) quest as well as its continuation in the Palace of the Dead both touch on that. The HW WHM quests also revolve around shutting down someone's experiments into the matter.

It does exist, but it's considered a forbidden art and is most commonly utilized by voidsent (Forgall in the Weeping City of Mhach being the most notable example, though multiple lesser voidsent summon undead as well).

I was under the impression that the quest chain dealing with the one WHM girl explains that Necromacy is essentially a evil application of White magic? Maybe Im not remembering it right, but it was summed up to just because you could use White magic for it doesnt mean you should.