Oh no.... there is actually an ancient burial site not far from here so I might be screwed after all. Do ghosts migrate?
Can't tell for other countries but in VN, it's very hard as they're bound to the land (unless, somehow, it's bound to an object or...
you). You'd need a strong exorcist, shaman, monk or priest to take the soul away or subjugate it. To ease such souls, for laypeople, a proper tribute is required as doing so means you're "bribing" them into leaving you alone.