It is not a fairy tale. It is the history of the mother of one the Christian church's greatest theologians of all time.
It's not "history"; it's an invention of a cause-and-effect relationship for which there is no evidence. And promoting belief in that cause-end-effect relationship is promoting the brutal abuse and murders of women who don't get themselves and their children safely out of the way of abusers before it's too late, and of the children who get no choice in the matter.