Remember: the greater the reprieve, the more terrible the chaos that follows. If we don't proc the Apocryphal now, it probably hits us with something bad enough later anyway.
And right now, even the standard activation is a "risks unavoidable death by task-failure" (permanent death sounds like a 4 Pick level challenge I think, IIRC).
Hoo boy. It looks like it might be time to use Silver of Evening on either the Apocryphal, or the Doom of the Tyrant in order to be able to negotiate with the new challenger.
That said, it's certainly not impossible for Hunger to convince a being that was his wife to side with him unequivocally, though his near total lack of memories and drastically altered state, plus the Doom of the Tyrant, make it a chancy proposition at best.
By the power of the Apocryphal Curse, Ceathlynn's hatred of the Anomaly and the tyranny it represents has been inflamed to fanatical levels. While she cannot condone Dien's horrors, she see's Hunger's subjugation by Rank to be no less total in effect.
One possible argument that Hunger can lean on here: in a word?
Time.
As King Menethil said, "No king reigns forever, my son."
Hunger will rule the Human Sphere for 50 contiguous years, then vacation for 10 years and leave. That's not... eternal or endless or ageless dominion or anything, yeah? The fates that Dien deals out to people is permanent; he kills and drains people, all for the war-effort. With unbelievable rank, Hunger might lay a legacy that lasts for a damn long time but... Well first of all: Hunger isn't an asshole, so whatever legacy he leaves won't be a
bad one.
(That's also actually a decent second argument: Hunger isn't a jerk. Uncompromising, but not an evil jerk.)
Second of all, while
Hunger might hold a world in sway and be uncompromising due to Doom of the Tyrant... His chosen vizier or chosen successor would not be. And that's going to be Adorie -- as her rule renders a land immune to the Apocryphal Curse, and also because she has mythical and potent ruling powers.
So the arguments are:
*Hunger won't rule forever, merely 50-60 years
*Hunger isn't an asshole, he's not out to deal fates worse than death
*But maybe you value freedom over "security but irrelevance and zero freedom or agency" and fear that 50 years is enough to leave a permanent mark on the fate of the galaxy anyway, in which case...
*Hunger will, to avoid the Apocryphal Curse, be ruling by proxy
anyway; and his proxy is Adorie, which means the actual day-to-day ruler of the Human Sphere is kind, capable of compromise, and a good ruler too
*"Marry me, and we will rule the galaxy, as husband and wife!" (I saved the corniest/best for last.)
(More seriously... Hunger
does take his oaths uber-seriously. If he promised to not be a tyrant or dominate the world unduly with Rank, or to give equal rulership/sway to his wife... he'd hold to that oath. A tyrant to himself, via oaths, too.)
For other ideas or tactics:
*Silver of Evening on Doom of the Tyrant in order to make Hunger able to negotiate worth a damn. (Silver of Evening
does apply even to Doom of the Tyrant. It's neat that way.)
*Silver of Evening on the Apocryphal Curse, to lessen this whole shitshow.
Or you could choose the boring path and pick "Look, A Distraction" and try to punch out a false vacuum collapse. Maybe by using Silver of Evening to directly reduce it, and then try to redirect it into the Realm of Evening (this would probably decimate it and ruin it massively though) or try to use Sealing on the Psychic Astral Vacuum Collapse?
I'm not very interested in that choice though; it just doesn't
interest me as much as the Catherine one. (Or potentially the Aobaru one, but, eh, I really dislike the fact that the Mordred option gets us on the prongs of an Apocryphal Proc on one end, and risk of Apocryphal
Onslaught on the other end.)
Failing everything though?
We
do have Seal of Imprisonment (or however it's called). We could use that on both Catherine or Aobaru, to avoid killing them. We imprison them in the Realm of Evening, and try to work things out with them over time or or... something. That's a "nothing else worked, don't/can't kill them; try the nonlethal subdual option" option though. It tastes bitter and like failure, but... it's an option.
I am also feeling far more confident about being able to Seal a person -- whether Dien, Catherine, or Aobaru -- than a Fucking Astral Vaccum Collapse. I'm not sure if the latter even can be sealed, whereas a person manifestly
can be Sealed.