Question about Twiceborn and death from old age

[Endoperez]

Nerfix said:
So, if a mage dies from old age and has cast Twiceborn, will he or she be reborn as Wight mage?

I don't think old age directly causes Death. It might cause afflictions, including Disease, and might die from those, and that should enable him to be born as a Wight mage. Of course, since Death mages suffer less from old age (they get less afflictions), it isn't as important for them as it could be for some other mages. I suspect that all the afflictions would also stay, but that shouldn't matter often. A limp mage is still as good a researcher as any other.