Re: The knowledge
There are those who might take a missing book to be a small matter, but Iviana can't really comprehend them. Even before Lydia found her, she had loved books, learning, study...she generally assumes it's one of the reasons She led her out of the woods in the first place - back when she'd been young enough, and more importantly, foolish enough, to assume that having read accounts of adventurers and explorers was all she needed to survive a while on her own...
Others who might assume they'd just misplaced it. She can understand that one; Goodness knows, she's not perfect. But she is careful, and...she's sure.
Even so, normally, this sort of thing would suggest only one possible course of action: Go find another book to read, and check back later when whoever took this one would probably have brought it back. A dream - even a very vivid one - is no reason for her heart to be going so fast all of the sudden!
The sense of certainty that came with the dream, on the other hand...that felt, and still feels, like something she ought to pay attention to. Lydia has never had cause to send her a true Vision before; she'd hate to ignore it when She does...
It occurs to her that she's been staring at the bookshelf for more than a minute. Shaking herself out of it - more a vaguely troubled feeling, than anything, she decides there's only really one thing to do. She sighs, quietly. She doesn't want to trouble any of the Sages with it. They'll put it down to her "impatience," she knows.
Afterall - she's got a mere two hundred years to go, if all goes well. Why wouldn't she be in a rush? At least some of the younger Sages are only a little bit older than she'll ever be.
Chiding herself a bit with the thought that it's a lucky thing Lydia has no particular commandments against a bit of jealousy, she goes to track down one of the library's Sages. Preferably, one of the younger ones.
When she finds one, she approaches carefully. They make her feel like a child again, tugging at her mother's skirts with another confession of a miscast cantrip. "Pardon, Master," she says, humbly, for his attention, and then waits until she has it. "I was reading a book yesterday - The Battle of Emridy Meadows and the Overthrow of the Temple." With a human Sage, she muses, she'd have probably cut the title in half and figured they'd know the one she meant - to the elves, that would have gone down as `imprecise' alongside the everpresent `impatient'. "I can't find it now; is it possible to find who has taken it, that I might ask it back for the day? Or, perhaps there's another copy, or another book on the same subject I might compare?"
Impatient, she thinks. Yes, I know..
[Private to GM: Yes, definitely a good beginning! grin Do let me know if I'm writing in or pushing ahead too much...]