Lesser Time Stop.

...which gives her just enough time to cast Mage's Magnificent Mansion and pull the petrified Athpechya through the door before the second team of Security storms in.

Stone to Flesh.

"Who are you and where are we?"

"My name is Abrogail Thrune. I'm the hereditary-chief-executive" what the fuck kind of language makes 'Queen' a six-syllable word "of Cheliax. I work closely with your counterpart in my world. This is an extradimensional space whose entrance is in your apartment. Your people's Security can't enter."

"What do you want?"

"Oh, I didn't even mean to be here. I'm just having fun."

"You have an interesting definition of fun."

"You should try it sometime." (Nah, that's too much to hope for, Aspexia never has any fun either and it's perfectly legal for her.)

"Anyway, I'll probably conquer your planet sometime in the next few days. Between my economicmagic and the fact that you don't appear to have ever seen an Evil person in your lives I'm not expecting much of a challenge. Maybe it's the warm-up round, which does make me a bit concerned about what the real game is going to be."

She's being serious, isn't she.

"Do what you want. They mostly deserve it. Just don't interfere in the Basement. I do rather prefer humanity in its current state of existing, whatever its other faults."

Annihilating humanity is not, actually, the worst possible outcome when building a god.

—that's a heretical thought and she wouldn't have thought it in Cheliax, even though no one would have dared punish her for it anyway, not in this life, but now that she's left Golarion and probably isn't going back, it comes unbidden to her mind.

"I don't mean to interfere. Though I'm beginning to doubt that anywhere else is even slightly prepared to fight me, and that's no fun. How'd you know that lead helmets block Detect Thoughts?"

"I'm not in charge of Security planning. My guess is that someone else figured out a while ago what I figured out when you showed up, that we're in a story, and it's a pretty common trope, albeit a stupid one, to have alternatephysics that imitates real physics in ways that make no sense on reflection—dense metals block radiation, not that I expect your mindreading runs on that.

"Tell me more about my counterpart in your world."

"She's the most senior employee—" no language, what the fuck language "—the 'Grand High Priestess' of Asmodeus. The Church occupies...a similar role to your Keepers, or so I gathered from your thoughts earlier, although you don't have to be Good to rise high in our version." In fact you can't be, but Athpechya has had enough of a Good upbringing that she might have Good sympathies despite not being Good herself.

"Asmodeus?"

"The greatest of the Lawful Evil gods, greatest also of all the gods although it was illegal to present evidence otherwise so I'm not in fact certain of that, Prince of Hell et cetera, and my senior partner in the rule of Cheliax, at least formerly."

"YOU MADE AN AGREEMENT WITH AN UNALIGNED SUPERINTELLIGENCE?!!!"

GET HER AWAY FROM THIS PERSON BOTH OF THEM NEED TO BE PUT INTO CRYO IMMEDIATELY

—except if Asmodeus has a copy of her he probably predicted this and is using her to affect dath ilan's Future.

Every employee of the Basement carries at all times a small explosive device intended to be used irrevocably destroy their brain, should they come into contact with something that could contaminate even the Future.

Sleep.

You have two and a half seconds to kill the corrupted Keeper. It takes three to cast a Sleep spell.

Too late.

She's lying on a black stone floor in the middle of a very doompunk building.

"...Most High?" an unfamiliar man says carefully, in a language she doesn't understand at all.

Oh. Right. The Isekai Theory of Immortality.

There's an obvious inference about where she just landed, which she isn't certain of yet, but if it's correct then bidirectional and possibly repeatable travel exists between dath ilan and Abrogail's world, and she needs to kill Asmodeus before He can affect dath ilan, possibly by destroying this entire world.

Her resources: she apparently looks exactly like, and possibly in some metaphysical sense is the same person as, possibly the head Keeper of this entire world WHO IS ALSO AN AGENT OF AN UNALIGNED SUPERINTELLIGENCE but that's something she'll process after she's made a plan to survive the next five minutes.

Her obstacles: she barely knows anything about the world, doesn't know how to use the local alternatephysics, and doesn't even speak the language.

Probably she just needs to remove herself from Reality, especially since Asmodeus has had access to a copy of her for an unknown length of time and has apparently gotten good enough at optimizing her that her alternate self identifies as his 'Grand High Priestess', whatever that means. She would alert Civilization first, but Asmodeus has probably optimized that as well.

—she just tried that. It appears to have just made things worse.

Not to mention she probably couldn't anyway. People in worlds with mentalmagic often have alternatephysics souls, and she isn't sure that she has one, but if she does she probably can't easily destroy it, and killing her body would just send her to an afterlife. Possibly an afterlife run by Asmodeus, which is really not a place she wants to end up.

—maybe this is Asmodeus' afterlife? She needs more evidence to discern between that and her previous hypothesis.

Okay. Strategy. She can't, actually, pretend to be her alternateself long enough for that strategy to do more expected good than harm. Nor does she expect much goodwill from the alternateselves thing—maybe if they believed her, but why would they, and impersonating someone of her alternateself's importance is probably a serious crime.

"I'm not the 'Grand High Priestess'," she says in Baseline. "I just look like her."

Tongues.

"What did they do to you?" the man asks incredulously.

Updating.

This man seems to be assuming both that she's her alternateself and that there's a reasonable excuse for her not to speak the language. She'll run with that.

"...I have no idea," she says. "What happened?"