
So I ran the dungeon in question for fun today, and I noticed some stuff regarding the White Magestones that were mentioned earlier, along with some other stuff. Keep in mind that some of this is just theorycrafting.
The White Magestones are not yellow, I can confirm. They're glowing blue in a black casing.
The area that they are within is the "Sanctum of Dreams." This, in turn, is housed inside the "Tower of White." The latter suggests rather plainly to me that this was the places that the White Mages called home, considering that they were more or less an order within the old society, while the former suggests to me that this area may have been their innermost chamber; just as the Conjurer's guild is primarily a place of quiet for meditation, so too, I believe, was the Sanctum of Dreams before its takeover by voidsent.
In addition to housing the White Magestones, the Sanctum of Dreams is also oddly clear of any sort of corruption as is seen all over the outside of the city. It permeates the city so thoroughly that it seems rather unlikely that it wouldn't be able to find its way inside as well. I personally feel that the reason why it may not have been able to would be due to a concentration of healing magic within the Tower of White.
Within the Sanctum of Dreams are two other sublocations. The stairway you make your way down is the "Arrested Darkness," while the central area where the final boss is encountered is the "Waking Nightmare," a name in stark contrast to the name of the entire area. Both of these names would suggest to me that the Sanctum of Dreams was a location that was taken and perverted to serve the opposite of its intended purpose, a place of rest and healing. As a result, I don't think it would be much of a stretch to say that the White Magestones are using, or were otherwise created by, White Magic.
It's also worth noting that the exit to the Sanctum of Dreams is marked as leading to "Central Amdapor;" although I don't know how involved they were in the use of Black Magic, it is clear that they held White Magic in much higher regard. The fact that they would build a temple to it in the center of their city speaks volumes.
Dungeon maps for reference:
The White Magestones are not yellow, I can confirm. They're glowing blue in a black casing.
The area that they are within is the "Sanctum of Dreams." This, in turn, is housed inside the "Tower of White." The latter suggests rather plainly to me that this was the places that the White Mages called home, considering that they were more or less an order within the old society, while the former suggests to me that this area may have been their innermost chamber; just as the Conjurer's guild is primarily a place of quiet for meditation, so too, I believe, was the Sanctum of Dreams before its takeover by voidsent.
In addition to housing the White Magestones, the Sanctum of Dreams is also oddly clear of any sort of corruption as is seen all over the outside of the city. It permeates the city so thoroughly that it seems rather unlikely that it wouldn't be able to find its way inside as well. I personally feel that the reason why it may not have been able to would be due to a concentration of healing magic within the Tower of White.
Within the Sanctum of Dreams are two other sublocations. The stairway you make your way down is the "Arrested Darkness," while the central area where the final boss is encountered is the "Waking Nightmare," a name in stark contrast to the name of the entire area. Both of these names would suggest to me that the Sanctum of Dreams was a location that was taken and perverted to serve the opposite of its intended purpose, a place of rest and healing. As a result, I don't think it would be much of a stretch to say that the White Magestones are using, or were otherwise created by, White Magic.
It's also worth noting that the exit to the Sanctum of Dreams is marked as leading to "Central Amdapor;" although I don't know how involved they were in the use of Black Magic, it is clear that they held White Magic in much higher regard. The fact that they would build a temple to it in the center of their city speaks volumes.
Dungeon maps for reference: