Iomedae is ready to sign the Worldwound treaty, and has written up a proposed agreement with Korva to only declare a war, or give Cheliax cause to declare one, if she confidently thinks she can win it wholly in less than six weeks and without the Worldwound forts falling unless she convinces Korva  (in non-magic-aided persuasion going off honest analysis) it's worth doing despite this standard not being met. It includes proposals for various parties whose informed disagreement with Iomedae about whether she can win in six weeks or about the Worldwound forts would be grounds to declare she cannot yet go ahead.

She's most happy with having the question of how fast she can win put to any number of parties from her world, who cannot betray her to Cheliax - the Shining Crusade command, her Council monitor, Aroden, Abadar - but also of course god Iomedae and she's willing to consider making the go-ahead reliant on a factual judgement from a Hellknight order if she's satisfied herself they in fact won't betray a confidential negotiation or self-deceive about the factual question. She doesn't mean to impugn their Law but she'll have to actually observe them to stake this on it.

Iomedae intends to maintain absolute secrecy about Korva's involvement in this, including after the war unless at that time Korva wants it acknowledged. (She would prefer to put an accurate account into her secret notes so that centuries from now the historical record can be accurate.) She represents that the only people who know, the Shining Crusade command, really can keep a secret.

Iomedae's current uninformed speculation is that all of Cheliax, Andoran, Molthune, Isger, Druma, and Galt have forces tied up in warring with each other which could as part of a general peace and proposed pan-Avistan defense alliance be freed up to put at the Worldwound. She further speculates that the complicated Inner Sea geopolitical situation is making it less likely that the archmages who could be helpful with solving the Worldwound will do it. She intends to change that, though the details are going to depend immensely on the actual situation on the ground on which she doesn't yet possess context and also she is going to need to figure out how to not on net weaken the Shining Crusade. (She's hoping that some future high-level wizards and so on will be intrigued by the idea of working a few seasons with the literal Shining Crusade and will take some of the pressure off.) She represents that her best guess is that Korva will have tens of thousands more soldiers and a few more archmages working on the question of how to close a planar rift.

She is tentatively going for a pan-Avistan defense alliance of independent nations, not rebuilding the Empire. She was never really very impressed with the Empire, and while its breakdown doesn't necessarily sound like it's been great for people it does sound like it has the potential to contain things that are better, if there's a way to avoid everyone constantly being at war. And as a matter of principle one should try to concretely behave differently than a wholly selfish person planning a naked power grab, no matter how unimpugnable one's motives.

(She tentatively expects they'll go ahead in around three months. That gives them time for a lot of spying and preparatory work and soul-trapping-magic-item crafting, means they can shuttle over some veteran-but-not-invaluable Shining Crusade forces for the occupation and for the Worldwound which the Shining Crusade won't miss much in the winter, means she can negotiate treaties with all the neighbors and Hellknight orders in advance, and gives her time to do a lot of urgent hiring she's already doing and double the civilian administration of her own liberated Encarthan and then bring people through to help her govern the place. She means to govern it with Chelish people, she thinks that matters, but - not Asmodean Chelish people until she better understands how Asmodean Chelish people work.

She doesn't say this, because Korva doesn't need to know it.)

Korva will re-swear Regill to secrecy on the topic of this new conversation - it's not that she doesn't trust him, it's just that she was raised Chelish and knows at least one thing or two about following the letter of the law - and they can talk this out.

"Entities in this world currently have no way of directly seeing conditions in the other. It would be unwise to trust any entity on this side with accurately determining the odds of this operation's success. Of the parties suggested, the only ones capable of seeing any part of the situation on the ground are the hellknights and the goddess Iomedae."

"I do not recommend that you entrust the Order of the Godclaw in general with that judgement. I am not wholly certain that all of them will see that their ultimate duty lies with the order's mission. The goddess Iomedae is most likely incapable of self deception or of breaking commitments She gives, but at present She has given us no commitments, and her vision is limited." 

"And of course the other Hellknight orders are even more loyal to Cheliax, and less likely to be willing to work with Iomedae."

"Correct. And other deities are even less likely to be capable of seeing the situation than Iomedae, although Abadar at least lacks some of Iomedae's reasons to support an invasion."

"Can we ask our Abadar? Or ask both Abadars, and see whether they agree on odds of success?"

"Probably, though one of the first questions I intend to ask Iomedae the god is whether any cause exists to withhold details of your timeline from the gods of mine. If prophecy broke to contain some greater horror that could act on the gods as soon as they foresaw it, or something."

"That makes sense. Ugh."

"Well, none of this is going to work if we think we can't trust the goddess Iomedae with knowledge of your plans. I guess the obvious choice for mortals on our side who we are already trusting not to betray you to Cheliax is Regill, who is in fact also up there in terms of awareness of the situation at the Worldwound."

"I am willing to agree to rely on Regill's assessment of the prospects of success of our plan and the effects it will have on the northern Worldwound forts. For whatever it's worth, I am very sure Iomedae wouldn't evaluate a factual question incorrectly because it was to the great advantage of Good. I would never do that and I'm not even a god yet; you've destroyed almost everything important, by the time you're doing that."

"I don't really expect her to, I just - prefer to have a couple different parties agree, here."

"If you're willing to rely on Regill's assessment of the factual questions about the effects of your plan, or on convincing me if he disagrees with you about those effects, then I have no objections and will ferry you across. Regill, are you still willing to offer an assessment of the plan's likely effects on the Wordlwound barrier?"

"Yes, Knight Commander."

"All right, then. Let's do this."

She will be ready to depart with them in twenty minutes. 

Iomedae has gone back and forth over whether to go in disguise to Vigil. The argument in favor is that there are probably statues of her, and she wants to travel inconspicuously. The argument against is that they probably have someone who can take a look at her with True Seeing, and being polymorphed is going to be incredibly suspicious. She wants to minimize the number of people who learn the secret who are not necessarily qualified to keep it. 

“I don’t suppose you have some trick up your sleeve that beats True Seeing,” she says to Alfirin.

"Mind blank will, but will be otherwise noticeable and suspicious. Other than that - A couple but they’re irreversible and involve you dying briefly."

Iomedae blinks at her, probably rather stupidly, for a second. “...well I do want to, when hit by a good enough Dispel, be observably the person they expect me to be, so probably let’s not go with those. 

I think I’ll just go as myself, mundanely disguised. …is it strange that I on some level would be deeply delighted to be arrested by my Church for being suspicious?? Especially if they actually did a good enough job of it that I couldn’t leave!”

"Well, if that’s what would bring you joy. Have you ever, in fact, worn a nonmagical disguise good enough to pass inspection by a moderately competent inquisitor?"

“Well, no. Generally there isn’t a strategic purpose important enough to justify deceiving people and if there is then I’m Polymorphed. But I’m not trying to look like someone else specifically, just not like whoever’s on the portraits and coins.”

"Honestly probably the best way to do that would be to skip the gum and makeup and just - get a bad scar across your face, avoid any regenerate until the time is right. Or I can polymorph you into a goblin and you can tell them that a wizard you suspect of being evil did it - I guess the true seeing would still show your actual face - "

Iomedae contemplates the question for a few seconds which is really as long as it merits, this is not actually a good use of the time of either of them. 

“Let’s do the Mind Blank. I want to see what they do if they’re suspicious, and I really really don’t want anyone, or any god, to read my mind.”

"If you’re sure you’ll be done in two days."

“If I’m not, we have other problems.”

And so she goes to Vigil Polymorphed, as a Tian woman of about her age with a +4 Wisdom headband and some moderately expensive enchanted armor, Mind Blanked. 

It’s beautiful. Well, it’s not, it’s a very utilitarian fortress-city, but it’s populous and complete and alive, instead of a bunch of drawings on a sheet of paper. There are children playing in the outlying villages! Real Iomedaen children! The river is crowded with boats. She may have deliberately lowered her standards too far, from Marit’s report, or maybe she just didn’t realize how much it would move her, to see Lastwall as a living thing.

Let’s see if they arrest her as an obvious ploy of Asmodeus.

She approaches the gates on foot.

Arrest her? On sight? Of course not. They ask for her passport at the gate.

She is from very far away. She does not have one. What she has are some fairly urgent questions.