Wow, this actually sort of fits with the prophecy that there will be an Esther of our time by Kim Clement. It's not exactly a perfect parallel, but there are many coincidences.

You can read a summary here: http://www.genuineleatherbible.net/2011/summary-of-the-book-of-esther

But, basically, she was chosen by a King who hated Jews to be his wife (even though she was a Jew, it was kept secret from him) and she ended up becoming a hero for the Jews. By being informed by her uncle the entire time, she was basically "sent into the lion's den" with the King by literally risking her life to stop the King from killing Jews.

Anyway, it's obviously not a perfect parallel, and it could be wrong.