Anyway, there's all kinds of lore about nomadic groups like this. In some stories they're monsters that come into town, feed, and leave before anyone catches on to them. In others they're under some curse to wander forever, and if you beat them at some challenge then you can win all kinds of treasure but if you lose they become free and you take their place. Then there are stories about tricksters, beggars who test compassion of those they encounter, and all kinds of other beings. The stories cover pretty much everything on the malevolence-to-benevolence spectrum. As things are, all I really know is that this group seems to be made up mostly of street performers and vendors and that whenever they are always accompanied by an increase in odd, possibly supernatural, occurrences.
Well then. Off to Monterey.