"That which can be destroyed by the truth should be."
-- P. C. Hodgell, Seeker's Mask.
"Cheliax is lying to you about Hell," Cedtara says, first, just in case that's all she gets to say, and Cheliax does not swoop in to steal him back right that minute so: "Hell is a place of torture. Most people don't become devils. Most people just suffer forever. Even the ones who become devils lose everything about them along the way. There are thousands of times more people there than there are here in Golarion, and most of them long for death every minute of every day."
She's got some freaky facepaint, and scarification on both cheeks and down both arms. Her eyes are scanning the environment like she expects them to explode at any second.
"How do you propose I figure out if that's true or false? Who are you? How did I get here?"
"Ask your god for the spell 'Vision of Hell', fourth circle. I'm Cedtara. This is Pyrissis -" gesturing at the door. "We're trying to end the world. We need your help."
"Pyrissis doesn't tell me anything, neither does Cedtara for that matter, that's something I would have thought myself unlikely to go along with so how are you planning to persuade me, how did I get here."
"Grabbed you out of your bedroom. They almost certainly know you're gone. We have Nondetection up but it shouldn't, actually, stand against Cheliax actually trying, so we're probably going to get caught in the next minute or two. You would understand that the world had to end if you understood what it's actually like. Suffering, suffering, suffering, from birth to death and long after, inescapable, involuntary. Very few people would choose to be born into this world, if they got a choice, or choose to have children, if they got a choice about that. It all has to go."
"Ask living people. Scry dead people. It's not a secret except from you, any book about Hell you read that Cheliax didn't select for you will say it, any person you ask that Cheliax didn't choose will know it. Presumably Abadar, have you got a first-circle truth spell?"
"Yes, tell me what symbol that spell would show according to you, and I've noticed you not answering my question about how you even know I exist."
"We work in small cells and this is a suicide mission that plausibly ends with me in Hell, I don't know anything like how we got the tip. The symbol is two curved lines, like so, it's some kind of economic theory thing. Abadar's not worth serving, though, He isn't doing anything about all of the suffering in the universe, he fought against Rovagug -"
"Okay, look, if this is actually real and you hanging around here is going to get you sent to a place of eternal suffering then you need to tell me how to get back in touch with you people and then Teleport the fuck away from wherever this is."
She beams fiercely at him. "We'll find you when you're out of Cheliax. Step back at least ten feet."
Ten feet are backstepped. "If what you say is true I'm going to have to magically hide when I'm out of Cheliax, how do I get a message to you."
"Don't hide from Sending, okay? And we'll contact you. Well. They'll contact you."
Pyrissis releases her grip on the magic item clutched in her left hand, and both of them are consumed, instantly, smiling, by five Beads of Fireball.
"Wrong priority. You pushed too hard there, at the end. We do not want them figuring out that this mission failed and repeating it, and that is a higher priority than tracking down one cell of Rovagug cultists."
The why is that Cayden Cailean has spotted a band of Rovagug-aligned mortals who are about to target the anomaly-securing-containing-and-protecting installation constructed by Asmodeus, in order to kidnap the anomaly and try to get him to destroy the universe. This is Cayden Cailean being very legible about that.
Cayden Cailean requests permission to update his oracle's curse with an information packet, after which Cayden promises that his oracle will stop the Rovagug-aligned mortals from obtaining the anomaly.