"Yeah. But, um, I've overheard a whole bunch of your conversation so far, and I like the cut of your jib, and I do have some Hesperidean Cider, it works perfectly well as far as it goes, the problem the algae experiments are meant to solve is scaling. Aaaaalthough, uh, maybe it wouldn't be the smartest thing to consume substances offered to you by a classmate at a place like this so maybe that's less helpful than I thought sorry."

"...hm. Uh, maybe if you let me and Edie check you over? You haven't had time for a lot of very specific prep work, and the upside is good..."

"Check me over like read my mind? Sure, is there anything I need to do?"

"Not for me, but step within five feet of her." 

Peeeeeeek. 

Lucy steps into Kiri's personal space. 

Lucy is thinking about Hesperidean cider and how ANNOYING it is that His Amused Lordship's research into it involves destructive testing, that stuff is legitimately scarce, and also Hesperidean cider is in and of itself legit but she could, if she wanted to, which she does not, spike it with moon-miser venom, which causes a seven-year obsession with the first thing the poisoned person sees absent some kind of amnestic, she does actually have a non-zero amount of moon-miser milk squirreled away in her room because this seems like the kind of place where it could be used in justified self-defense (the venom of a moon-miser-human hybrid would work better, it causes actual devotion and not just obsession, but there's only one of those and considering that they were created without their parents' consent so Mr. Fires could harvest their venom she was NOT going to go bother the poor kid to ask for any). Anyway she keeps it FAR FAR AWAY from the cider and she definitely wouldn't spike the cider but she could if she were evil and most people are evil so it's not like it would be reasonable to ask these people to just trust her. 

Lucy thinks in words, but they aren't, for the most part, words in any kind of normal language. Each word has fractally detailed layers of meaning, and users who don't know what they're doing with it to a sufficiently precise degree end up setting things on fire that they didn't mean to. 

"Pretty," murmurs Kiri. "How sure are you of your roommate?"

Well it depends on what Kiri means by that. She's at least 90% sure that her roommate hasn't lied to her (there is a Correspondence symbol which, when used magically, guarantees truthfulness in its vicinity). She's very sure that her roommate isn't actively malicious. She isn't sure that her roommate is harmless. Her roommate has been abused by humans in the past and took a shine to Lucy quickly because Lucy showed her her true form (this is Lucy's true form, a diamond crab with towering crystal spires emerging from her back) and it was closer to the "Pokemon"--the general-category-of-things-Mewtwo-is, which have enormous morphological diversity--than like the humans of her world. 

Mewtwo will absolutely hurt whoever she needs to in order to prevent future abuse from occurring, even if that person is innocent. That's not a principled stance she has, that her own well-being is more important than anyone else's; it's a trauma reaction. She is an intensely powerful psychic and an artificial lifeform whose creators made her to hurt other people for them; she eventually managed to hurt them instead, and escape, and she doesn't know what the long-term effects on her captors were. 

Critically, Mewtwo did not bring anything with her which could be used to spike the Cider, and also hasn't been alone with it.

"Okay, I'm leaning yes - Edie?"

"Your mind doesn't seem tampered with in any way that would make me suspect another psychic had implanted false memories of truth-magic interrogation, but I'm less confident about that on a mind like yours than I would be on a human mind; they're what I'm used to. I vote we accept the offer, but one at a time, so that if something does go wrong the rest of us will be able to react to it." 

"And if we do do that, I should go first, since I don't actually have any mind powers yet. You might not either," she nods to Idarai, "but I don't know you don't, and anyway, it's a gesture of good faith to volunteer to be the test subject." 

"I don't have any mind powers specifically, but it wouldn't be hard to create a mind-affecting spell if I were mind-controlled to." 

"Emily going first makes sense, especially since Edie will be especially able to check her, though it does mean more time in which a compromised Lucy or roommate could tamper. How many doses are there to go around?"

"I have a bottle yea big," she says, gesturing to indicate a size of about two gallons, "and a sip will give you basic youth and health from a baseline of very very old and do some other things," since she hasn't actually stepped out of Kiri's radius Kiri can perceive that by 'other things' she means that if you die and come back in the Neath (the Neath is a fucking enormous underground cavern, where the Mountain of Light dwells; most places in it are far enough from the Mountain for its light not to be visible, but still close enough to get some benefit) and then return to the surface and are exposed to true sunlight (The Law of the Judgments, which her grandfather the sun may not defy by switching away from) you crumble into dust. Unless you drank Hesperidean Cider, or have other weird stuff going on. "No amount of cider makes it categorically impossible to be killed, but you stop aging after about a tablespoonful." 

"Okay, that's plenty."

"I brought that much because when I was deciding whether to come I got to interrogate someone about what was up, exactly, and one of the classes is supposed to be about something called 'chi,' and I didn't really understand what that was supposed to be but the answers I got when I asked suggested it had something to do with aliveness."

"I think that's a Chinese word, but like, I grew up in a post-apocalyptic wasteland, so my cultural education is spotty at best."

"I haven't had reason to learn any Chinese languages yet! Maybe I will now." 

"I mean, translation here is being handled in... some way, I assume none of you are speaking Welchin."

"Well, yeah, here and now. Not after we graduate, I bet."

One of the Chinese-looking attendees chooses this moment to walk in. She loads up her tray with normal food and also with a single evil-looking ornamental doodad from a pile of same in a hot plate.

"--Speaking of. Man, those things are concerning."

"What's concerning, exactly?"

"The little widget. I have weird vision and they look concerning."

Her vision has the ability to perceive things that should not, strictly speaking, be carried by photons, and those things look a little bit like souls and a little bit like--well, they don't look like Seeking crud, but they look even less like anything else. (Seeking involves attempting to use rituals extremely destructive to oneself and those around one to call the racist space cops on Lucy's family for space miscegenation because Lucy's grandmother didn't prevent [That Which Illuminates/That Which Is Devoured] from being killed and eaten and [That Which Illuminates/That Which Is Devoured] is still mad about it.)

She doesn't eat it, at any rate, just holds it for a while and magically makes it even more concerning, then eats the rest of her meal.

This is probably none of Lucy's business but it does highlight how glad she is that if anyone from her universe was going to come here she's really glad it was her and not a Seeker.