Another thought---they show us 7 amulets and tell us there are 12. Logically, the remaining 5 must be overseas. This at least implies that there's some reason that the amulets need to be spread over a wide area to do whatever it is they do (or keep them from doing whatever it is they do). Reuniting the amulets in one location could be a VERY good incentive to risk a trip like that. Cynic Polcamilla says that the show probably doesn't have the budget to go all Around the World in 180 Days on us.