Well, I'm afraid that I have ... nothing. I've asked my countrymen about this, and there are no answers to be had. We have our ghost stories, of course, but none of them match up with ... with what we've heard. Walking dead, something about the moons? No Kilians I spoke with recognized either of those things from our fairy tales.
I even went so far as to ask if it could be an artifact, like the one we thought might be ... causing Celeste's difficulties, those years ago, but no luck there, either. Whatever is causing this, I don't know what it is.