“What the fuck?” he says, in Taldane. He didn’t really mean to say it in Taldane but it came out that way.

"I apologize for not having been able to warn you. Is this spell not commonplace here? I think I must be from very far away, if this is a ship it's very different from any I've heard of."

“Spells aren’t real.” The language he’s speaking insists otherwise. “—well, they’re not real here. Where…are you from? Are you actually human or are you just choosing to look that way?”

"I am a human cleric of Iomedae from Cheliax. Which is on the continent of Avistan. ...on the planet Golarion."

Possibly both he and this guy are insane, but, one, if he is, then dealing with that is someone else’s job; two, enough impossible things have happened already that it seems worth investigating the possibility that they aren’t.

“We don’t know of any planet called that. I’m guessing that, if we’re both in our right minds, you’re in fact farther from home than you knew it was possible to be, if you’ve never seen a spaceship before.”

“…you’re currently aboard the Donnager, a warship of the Martian Congressional Republic Navy, under the command of Captain Theresa Yao,” he adds, because it is actually legally obligatory, if he might not already know. “You are a prisoner on suspicion of illegally infiltrating this ship, though if you did not do so intentionally, you have not committed any crime and will be released as soon as is feasible. Did you in fact intend to board the Donnager?”

"No, I was traveling on foot across Cheliax and was attacked by a monster of a species unfamiliar to me which appears to have teleported me here. A space ship? It goes... between planets? Stars?"

“Between planets—it could also get between stars, in theory, but it’s against the laws of physics as we understand them for anything to travel to any but the nearest stars in less than a human lifespan. That’s one of a number of reasons why your story is impossible from our perspective, but it probably is the most prominent one—what is a cleric and who or what is Iomedae?”

"Iomedae is the Lawful Good goddess of victory over evil and triage. A cleric is someone empowered by a god to perform magic, like the spell I just used - there are other kinds of spellcasters on Golarion and relatively speaking we're specialized in healing and support but if you don't have any casters here I'm not sure how meaningful that is."

“Gods, like spells, are something we have the concept of but are mostly agreed not to be real or at least not to have visible effects on the world.” Though it’s not impossible for there to be aliens with sufficiently advanced technology and bizarrely familiar tastes who kidnapped some humans to another planet sometime in prehistory, it’s just insane—

All the lights turn blue.

“Shit!” he says, this time not in Taldane.

“The ship is under attack,” he says to Blai. (This is in Taldane.) “You need to follow me.”

"Understood." He will get up and go where he is led.

That would be to a room with some strange-looking chairs, into which are strapped the other people Blai saw in the holding cells earlier.

“This man claims to be from another star system and to have magical powers,” he tells the other five. “I’m not sure if that’s true but he did arrive on the ship without any physically plausible mechanism, and I also now have the otherwise unexplained ability to speak his language, which even our computers didn’t recognize.”

“So, first of all, that’s insane—”

“Almost certainly, but if I’m not then it seems helpful to have one of you also speak his language, if you’re up for having sufficiently advanced alien technology insert knowledge directly into your brain.”

“…I’ll do it.”

“If you have another of the language spell you should cast it on her,” he tells Blai, pointing out Naomi.

Well, that sure did sound like a language he’s never heard before! Huh. What the fuck.

"Very well," says Blai, "Share Language," and he pokes her hand. "That was my second of two; I'll be able to do it again tomorrow and it does last all day."

“Whoa.”

“Can you understand me?” she asks Holden, in Taldane.

“That’s definitely another language.” Seriously, what the fuck.

It doesn’t verify the whole story, because ‘instantly transferring knowledge of an entire language’ is something you could plausibly do with strong nanotech and ‘FTL travel’ is not. Still, it’s the sort of thing that tempts her to throw out all her models of reality, not just the ones that were actually violated.

”Strap in,” she tells Blai, directing him to an empty crash couch. “Uh, have you ever been on a spaceship before?”

"No, my planet doesn't have them, only the kind of ship that goes on the water." He will attempt to copy their belt configurations.

The belts are designed to be easy to put on very quickly in an emergency; they're not complicated.

"Okay, well, in space there isn't any gravity. You feel yourself as having weight because the ship is accelerating—smoothly towards its destination, under normal circumstances, but in a combat situation the ship may need to change speed or direction rapidly, so we need to be strapped in."

"I don't know exactly what's going on, Mars isn't supposed to be at war with anyone, but it will probably be several hours before anything exciting happens. In space you can see enemies a long way out."

(The ship is starting to accelerate faster; Blai now feels more like his normal weight, possibly a bit more than that.)