I had a thought. Since Diva's new mission is resurrecting her Grand Aunt by scouring the netherworlds, wouldn't Diva'ratrika come to same logical conclusion as Sha'sana and taint/merge herself? According to the Longest Wait, Diva knew next to nothing in depth about the nether arts.
And now her lifelong mission is not only mastery of the gates but sifting her away through thousands of worlds and nether beings to find Sharess's aura. Of course, digging through so many gates and possibly encountering so many potential unknown nether creatures, the only surefire protection is the safe taint.
Additionally, Diva will then become a master of nether summoning in this new journey.
It's almost ironic that Diva, who fell to Snadhya and nether demons, would eventually become a master of nether.
Which got me thinking, do you think Diva would begin to understand Snadhya better? Especially if she taint merges herself in order to resurrect Sharess.
Or do you think Diva will refuse to taint/merge herself?