Every once in a while, those Malnosso guys will do an experiment on the villagers. Seems to effect most people, but not always all of them. It's not always obvious what they plan to get from it. The first one I was here for, people were randomly teleporting all over the place.

The second... [Yeah. Halloween sucked.] Let's just say it was less pleasant. Whoever was in charge of that one had more sinister intentions with what they were doing.