No, face totally unsurprised. 

"- that'll do, I suppose," she says instead with slight irritation because she cannot actually pay this person.

That's apparently fine?  She doesn't ask for payment nor apparently expect it?  The girl turns and heads on off with the cheerful smile of some Good person who's done a favor that didn't cost her anything significant and did help somebody else.

...or possibly that's a boy wearing a dress and a hairbow.  Also with two spikes of - obviously illusory? phantasmal? - ice, that are now manifesting around him/her/them, slowly fading, after she/he/they cast that spell.

They could also be actual aliens and have eight sexes, for all Carissa knows. It's incredibly bizarre that they speak Taldane, the kind of bizarre that suggests the whole thing is a dream or a test or that everyone is also a chaos beast which is being rendered for her as a human. Mostly as a human. If they were actual humans, they wouldn't have the apparent gender ratios; this place is clearly not enough of a tyranny to have obtained that. 

Well, she's not making much headway on question four: do they have the Church of Asmodeus here. What else can she try. 

....she can stab herself again, find an unoccupied area, cover herself with an illusion, write His holy symbol on the wall in blood, change disguises and get some distance, and see how upset they are to see it? Bit risky, though, when the magic system's unfamiliar and might permit pastwatching or something. 

Safer to put on yet another face and try "I'm looking for a priest, do you know where I'd find one?"

"A what?  Sorry, I'm not sure I heard that right."

"...priest? Representative of the gods?"

"Do you possibly have me confused for somebody completely different?  My name is Aya, and I'd have no idea where you'd find somebody old enough to remember when any gods were still alive, except for obvious ideas like dragons and high-elves and companions of Summoned Heroes and so on."

These people are weirdly gullible and trusting. No one in Cheliax would answer a stranger asking weird questions; she'd have been reported to the authorities several times by now. .....also there's a handy list of local immortality methods. "Well, I don't see any of those around, do you? I don't even know where I'd go to find a...companion of a Summoned Hero."

Whoever "Aya" is, she's not so trusting - or maybe, just not so altruistic - that she'll hang around having a conversation this weird and confusing.

She'll change faces but hang around to see if 'Aya' goes to the authorities about her or not.

Not visibly so for the first few minutes.  'Aya' seems to be heading on confidently towards wherever she was going in the first place.

(Aya was also heading in the same direction Carissa got thumbed-at earlier - towards the city center - and along the way, Aya will go past this lovely magic-item shop here, as the area gets visibly more expensive:)

Ooooooooooohhhh no no no, not looking, until she understands this world and has money she should not even glance at the magic items. That's how you die. Like APPARENTLY these people think ALL THE GODS died. 

....it's not impossible. Aroden died. You could imagine if the fight to kill him had been even worse. And now there are no gods, and the planet's on fire and there's no one you can pray to to fix it. 

Wow, for all of how their cities are rich and impressive, these people are so much worse off than people at home. Maybe that's why they're so gullible. What do they have to lose, anyway?

...she should save up enough money for a history book, that's what she should do. Head back to the poorer parts of town and ask if she can do laundry for money. Unless everyone here has Prestidigitation like many of them have Healing? Do everyone's clothes look unnaturally clean?

Okay, if random prostitutes are going around in ....stretchy white things....then she's not going to make any money off a laundry business.

She genuinely doesn't want to go adventuring. She's met adventurers, they're fine, there's only a handful she'd kill if she ever had the opportunity, and she wants them to be her customers at her magic shop where she doesn't do any adventuring. Furthermore, it'd involve using her magic, which is different from the local magic and will call attention to her. 

But that leaves making money without magic, and you don't save up a lot of money that way. You don't starve, if it's a good year, but it's not as if after a decade of working on the docks you'll be rich. You'll be a decade older and have back injuries that you can't afford to get touched up. -- well, maybe not the back injuries, here. 

What are her alternatives. A life of crime. unAsmodean and likely to get her attention she can't afford. Doing illusions like she's heard they do in Absalom, or being a Detect-Thoughts enhanced fortune-teller. Again might draw attention to her.  Selling translations. Works if everyone doesn't just speak Taldane. Prostitution and that genre, of which the least stupid version is probably getting friendly with the adventurers and then fucking them for a share of their riches if they come back alive. Profitability depends on adventurer mortality rates and whether contract law would be enforced in her favor, there. 

She doesn't like any of these options. She wants to finish out her term at the Worldwound and start her magic shop in Corentyn and not die. 

World's ending. And apparently it's not a big deal if she screws this one up, because some other one will grab her, but - probably more impressive people get grabbed for more desirable worlds.

She will continue wandering, looking particularly hopefully for places where adventurers seem to gather, and for any sign that anyone here doesn't speak Mysteriously Taldane For No Good Reason.

Possibly she should have asked the tea god some more questions.

A side wall of an alley opposite a shop that advertises "apartments for rent citywide, best prices" has this interesting bit of graffiti drawn on it.

- oh.

She feels enormously relieved, and also as if a bunch of usually-unused limbs had been in the process of finding their way out of the chest they were locked in and now needed to be shoved away. 

Does the art - suggest where to go to find the church of Asmodeus? Is the building it's on distinct from any of the surrounding ones? 

The graffiti is not on a building; it's on a long but solid wooden fence that separates buildings from an alleyway, and the other end of that alleyway is clearly visible and looks like it's another ordinary town street.  There's no other writing near the graffiti that hints of a church, of directions to a location, it's just some sort of fiery cat-girl with a pentagram drawn over her breasts.

It makes sense that, in the absence of the gods, the church would....deteriorate.

However, Carissa feels like "your advertising should communicate where and how to find you" is really a very low bar. 

New disguise, new person. "See that artwork over there? Are they some local cult or something?"

"If you've somehow managed to live your whole life without hearing about it, you're better off never hearing it, honestly.  It's a fundamentally stupid idea but there's always some arbitrarily tiny fraction of the population vulnerable to an idea of some given stupidity level, and this idea is apparently not quite stupid enough for that fraction times the population of this town to equal less than one."

"...the idea being that Asmodeus is a ....sexy girl with cat ears?"

"I can't imagine how you got into whatever state of partial knowledge you currently occupy.  There was a god a few thousand years ago named Asmodeus who like got off on torturing people or something, don't ask me about details, and was one of the first gods to run afoul of a sufficiently powerful Summoned Hero who got upset about that behavior, go figure, and who turned Asmodeus into a catgirl.  A catgirl who did not, by all sensible accounts, survive for very long after that at all.  Anyone who tells you otherwise is probably literally mentally disturbed and you should just walk away from whoever that is."

"That is indeed incredibly stupid. Have a good day."

As if a mortal could fight Asmodeus and win. As if fighting Asmodeus and winning would look like - Polymorphing him or something, as if he was just a very big very scary dragon. 

It does kind of suggest the Church is no longer active here, though. And that she shouldn't identify herself with it, because whoever won that war spread rumors that Asmodeus was the god of torturing people or something.

And now their planet doesn't have any gods and is dying in a fire. Carissa hopes that this entire excursion is meant to test her faith, which is very secure in how having gods is much better than not having gods. 

Searching on:  There seem to be a lot of adventurer-type people in clustered parties gathered around... whatever this place is... though the mixture of the crowd, if they are in fact adventurers in parties, is strongly suggestive that many people whom Carissa might otherwise have identified as "prostitutes" or "ordinary twenty-year-olds wearing unusually nice clothing (for Cheliax)" are standardly part of adventuring parties.  The adventurers are gathered in front of a big impressive building; also nearby is a smaller, less impressive building that could plausibly be a tavern.