Also if I wonder whether the polar bear's appearance in Tunisia was directly and consciously related to Ben's appearance there - if he went there because of the bear or to do something concerned with the burial - or if it's linked only in the sense that Tunisia is one of the places connected to and accessible from the island in whatever form it was that Ben used to travel there. As in, you can get to Tunisia from the island, which is why the bear wound up there and also why it was one of Ben's points of arrival on leaving.
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