Esther:

This is the story of a Jewish girl, Hadassah who was also called Esther, who became queen of Persia with King Xerxes (or Ahasuerus), who did not know she was a Jew. Her cousin, Mordecai, guided her and was a gatekeeper for the king. Haman, the prime minister, disliked the Jews and asked the king to kill them all. Queen Esther persuaded the king to kill Haman and grant Mordecai the king's "signet ring" and the right to save the Jews. The Jewish celebration of "Feast of Purim" is for the saving of the Jews by Esther.