Tam-Tara Deepcroft and Edda

[Wolfandre]

How can you definitively say that the Voidsent we fight isn't, in some part, Avere reborn: Void Style? To be honest, we don't truly what happens after a character dies. Do we truly go to Nald'Thal? For all we know our souls could just be pulled into the Void. I agree it most likely isn't THE Avere but I think it's possible that some part of him could be in there, albeit corrupted by her necromantic experiments.

It is actually said in the Main scenario that, when a physical body dies, the soul, a life-giving aspect of aether, diffuses and returns to the aether. Few and far-between are the times that a soul does not, and there are only two instances that I can think of: souls that have prolonged attachment to Hydaelyn (Undead), and Immortals (beings such as the Ascians).

In the case of the latter, a Crystal of Darkness is required to prevent the soul from dispersing and shoves it into a nearby, weak-willed vessel. Should no such vessel be present, the soul is transferred into the Void until such a time where a body can be found.

In the case of the former, it usually just takes the destruction of the second body in order to disperse the aether.

This story could have gone either way. Edda's attachment for Avere could have potentially kept his soul around, hence why she needed bodies. However, we are told that his soul is missing, so Edda is not attached to Avere, but moreso the idea of Avere. Someone strong and brave. Someone with morals and someone famous. Someone like...you, the player character.

I have a feeling that she just wanted someone to fill the vacuum left when Avere died, someone she deeply adored because of his turn-around after meeting you. It's also why she contributes so much to you and practically worships you. By getting you, she'd also get Avere and the feeling she got around Avere.

It is due to that attachment that she was able to contact this magic, whether she intentionally opened a Voidgate and let a whole bunch of Voidsent in (as seen as monsters in the dungeon) or she tapped into some as-yet unseen magic source, such as Necromancy.

There is the distinct possibility that a Crystal of Darkness could have been nearby in the Deepcroft, considering the Lambs of Dalamud had previously taken residence there in order to summon Galvanth the Dominator. This possibility leaves Avere up to the same immortal fate as the Sahagin priest and the Ascians. However, you likely have to do this sort of thing intentionally, as the Ascians were mages that made deals with Voidsent to obtain this knowledge and use it and the Sahagin priest learned this from the Ascians. So I'm betting that Avere's soul returned to the aether and Edda tried building a new Avere using your soul.