He starts scrying.
"This one seems like the most applicable," he pronounces, after they have gone through several. The plane he's talking about has humans and Adarin finds obvious examples of people doing magic. "It's a bit - overly religious, I'd say, but the magic looks useful."
"Hmm, are we talking single religion everywhere or a bunch of them peacefully coexisting?"
"It... I think it's all of the same one, they have the same sorts of things set up everywhere. Temples with some sorts of offerings, pilgrimages... I think there are lots of temples with different aspects of the same pantheon everywhere? Or something? It's hard to say."
"So let's be... tentative about talking to them, in case they've managed to get the one religion everywhere via conversion at knifepoint, but we can tuck the portal away somewhere hidey."
Nod. "We'll be careful. Hopefully it's a nice omnipresent religion."
"And they won't attack me if I invoke a goddess for some spell or other in public."
"That. That would be great." Nuzzle. "We can pick another plane, if this one worries you?"
"It does worry me a little, but we can just - land somewhere relatively unoccupied, right? To be safe? Middle of a desert?"
"Yeah. Middle of a desert, with no one around. If we don't like the neighborhood we can find another spot to put a portal and just have a slight delay on getting to the other me."
Isabella nods and snuggles him. "It's not like he's expecting us for tea on Tuesday."
Snicker, snuggle. "True. I do hope he's not going to be frightened by our arrival, I know I'd be freaked out three years ago if a pair of us showed up to resurrect the dead and grant immortality."
"This time we don't appear right in front of him. We appear a reasonable distance away and politely knock."
"And then we ask him if he would like a Watchtower magazine and - oh, no, that's a different knocking protocol."
He laughs. "Maybe ask if he's found some sort of religious deity - what religions do that, again? I forget which are applicable, but we could do that. With one of them."
"Watchtower is the Jehovah's Witnesses. Mormons also send knocking missionaries. Those are the ones known for the practice."
"Maybe not as an opener. He will probably be spooked enough as it is, and talking about his immortal soul probably won't help."
"Shhhh. This is a once-in-a-lifetime chance, love. I can get all angsty and self-hating without actually hating myself. I would hate my other selves."
"I would rather you not self-hate at all even with a planar boundary between you and the object of your disdain! I think you are excellent."
"Awwwww," he says, and then he nuzzles her. "Then I'll refrain from the tired anti-hero archetype and accept your opinion as fact."