Board Thread:General Discussion/@comment-25315804-20161206050558/@comment-26116863-20161207043352

He's from a place where time runs weird, probably shifting and warping back on itself. That could mean if you leave it you can end up in a new land at any time, because it will be unsynchronised with your own world, unlike how the other worlds all seem to be. He could have lived to come and kill his father in the future, went back "home" and not aged, and then come to the present time in our world.