There is someone there, who comes over and opens the door! She's wearing scrubs and white clog-type shoes, and looks like she’s in her early twenties, definitely not student-aged. She also looks utterly exhausted, and like she at some point in the last few hours has been crying. She's holding an ancient-looking box of gauze. 

"Oh, uh, hey. I'm Marian, the school nurse. Are you having a medical problem?" 

"Not currently! Well, not any more than usual. If you're in the middle of something I can talk to you later. I just didn't know that the school had an infirmary, and I wondered whether we were supposed to tell you about any medical conditions that might cause emergencies before those emergencies actually happened."

"- Yes, that's exactly the sort of thing I want to know. And, uh, what I'm here for, I guess." She rubs her eyes. "...Sorry, I just - I got kidnapped here earlier today and just learned magic was real and I'm still...sort of getting my bearings." 

"Ohhh. That sounds really hard, I'm sorry they didn't prepare you better."

"I...don't really know what they could've done? If you'd tried to tell me magic was real before I got teleported, I probably just wouldn't have believed it, and...I guess if I had then it'd've made the monsters real and they might have gone after my patients. Which would be bad." Marian fidgets with the hem of her scrub top. "...Uh, sorry, I didn't mean to start complaining. You should tell me about your medical condition and what you expect to need help with?" 

"I have a rare disease called - wait, does this school have doctor-patient confidentiality, because I don't want people to believe I have a serious medical problem."

"Uh, yes, of course - one second." Marian shuts the door. "...All right, you can tell me and I promise I won't share it and will try to avoid, uh, implying anything based on what supplies I trade for and stuff." 

Plenty good enough for her. "Osteogenesis Imperfecta, Type I. It causes people to break their bones a lot, although I've been getting better, and the doctors said I would keep getting better now that I'm almost done growing. They also wanted me to keep taking hearing tests every few months, because sometimes people with it start losing their hearing as teenagers, but I don't know that there's much to be done about that, here. I guess I just wanted you to know ahead of time that if I get into any scrapes around here, there are better than normal odds of broken bones even if it doesn't seem like the sort of thing that would break bones, and whatever you do about it you should be mindful of breaking any more bones in the process, you know?"

Marian bobs her head. "Yeah! That's definitely something that's good for me to know. Hmm. I should, uh, probably have a file or something? I can hide it somewhere so people can't snoop, just, there are a lot of kids at this school and I'm worried I'll start losing track of who's told me what." 

"Yeah, it's really big because it's the only one in the world. Do you have a notebook? I could give you one of the ones I picked up this afternoon."

"Ooh, could you? You're sure you won't mind? I really want a notebook - I was mistreating Gray's Anatomy before and stealing blank pages, but apparently the books here can come alive and get mad at you, and then I lent it to one of the Chinese girls who's learning medicine." Marian pauses. "...Speaking of that, it - might be good if I could tell her? Since, uh." Shrug. She looks down at her feet. "Heard the last nurse only lasted a month." 

"I suppose that's all right. It's just that the more people believe I'm going to die the more likely it is to happen, and I'm not sure how much believing in myself it takes to counterbalance that and make the thing that I believe come true after all, you know? - Oh, you should be sure to believe in yourself, too, so you can make it longer. And don't tell everyone you're going to die, or they'll believe it and then what they believe will come true."

She goes through her backpack and picks up a blank notebook - make it two, it's always good to be able to do favors for adults, they've usually had time to learn some interesting things.

"Huh, wow! I didn't realize the expectations-based magic went quite that far. That's - good to know."

Not that it feels very actionable, to just, what, decide to believe she's safe and will survive and make it home? When she clearly won't. 

Marian distracts herself from this unwanted line of thought by digging out one of her remaining pens and flipping to the first page of the notebook. "...Oh, right, uh - what's your name?" 

"Mary Anemone Silverstring."

"That's a beautiful name!" She writes it down, and writes 'Osteogenesis Imperfecta, Type I' underneath. "Right. Do you have any medications to treat it? Are you going to need some? I can get drugs from the void, if I ask nicely." 

"I got a buncha off-label osteoporosis meds. Fosamax and Boniva. You can't get doctors to give you four years of anything, you know, but if taking them sounds like a terrible idea even knowing what's outside, I guess I'd want to know?"

"Hmm. I'm not an expert on those meds but I think they're pretty safe? Dunno if it's a bad idea to take them until you run out and then stop. I - should probably ask the void wall for a textbook on your condition, actually, I learned about it in school but I don't think I've ever treated a patient with it." 

"Makes sense. Should I come back here in a couple days or so, then?"

"Uh, yeah, probably, if you want more of a treatment plan. Though I may not be able to get obscure fancy drugs from the void even if I ask - my current theory is that it can only give me things that someone lost or dropped at some point? In the meantime, uh, I guess just keep up the med regimen you brought in? And if you do get hurt then I'll have context - I should probably read up on setting broken bones just in case and make sure I've got supplies for it, I bet Gray's Anatomy has stuff on that."