( she looks horribly offended at that idea. she's a librarian, good sir, she couldn't dream of it.

even if she did burn down a library but that was for a specific reason and something that pained her to do )

And if destroying that knowledge proves more dangerous, perhaps inadvertently releases something unknown that is on the book? No, keeping them locked away is the safer course. And they're places that can't be accessed.

( except to librarians and they don't unless completely necessary )