And since, despite the world's admitted tendency towards situations best left in the more dramatic varieties of literature, it wasn't literally a stereotypical gothic novel, Kanimir didn't expect anything in particular to happen. If nothing else, there were far more storms that happened to happen at night than there were potentially literature-worthy shenanigans. So it's completely reasonable for him to be curled up in his grand library, enjoying a book on magical theory.
"No, I wouldn't expect you to. But that was the first thing that came to mind when you mentioned there being something odd about my reflection as a result of being a vampire."
"What do you mean? Your reflection? It mostly looks just like you, but... with things."
"I'm curious about what sorts of things. If you'd rather not answer, for whatever reason, of course you needn't."
"I could just show you if you had a selfspace... I'm not sure how to describe it otherwise."
"Well - sort of. It's... like your reflection is glowing, except not quite, and there are parts of it that look like they have magic tucked away in them, and now that I know some of what the magic does I can tell where it keeps those parts." She pauses consideringly, then adds, "It does have fangs, now that I look, but they're not out right now."
"Ah. Yes. ...Another magical feature of vampires is that we can be...influenced by the blood we drink. The effect is entirely additive; drinking the blood of a genius may temporarily boost one's cognition, but drinking the blood of a dullard will not impair it. However, animals are sufficiently different that any additive effect has...unpredictable results, which is why the blood of humans--and relevantly humanlike creatures--is necessary."
"In mild cases--extraneous instincts. In more dramatic cases--overwhelming compulsion to follow those instincts, and occasionally physical transformations."
"Take whatever you want, within reason. If there's anything you don't know what it is, feel free to ask."
She nods absently, gazing at the things. There are many things. (It's easier to inspect their reflections than the things themselves.)
Well, if she's going to be doing that, Kanimir studies the quartz crystals some more.
Eventually she goes around and collects some objects which she bundles up carefully to take back to her room.
"If you are hungry or wish to freshen up now, I'll leave you to that. Otherwise, I should probably show you which sections of the library are off-limits sooner rather than later."
Alright. Back to the library!
The sections she's not permitted to access are mostly contiguous, but there's a bookshelf she's allowed in the middle of them. She isn't forbidden from entering the restricted areas, just reading from them.
She looks around and takes careful note of which shelves are and are not allowed, then nods. "Okay, I'll remember."