Heroes and saviors in movies and shows or whatever……have a scar or tattoo or birthmark identifying them to be just that. If it is the mark of who she is someone will recognize it and say, “hey you are the savior!””we are all saved!!!!” Well not that dramatic but Henry via the book or August will be the identifiers maybe even Gold will know the mark. That is if of course it is what it is? It doesn’t seem to be a mistake.