You found it! Esther had another name - Hadassah.
(ז) וַיְהִ֨י אֹמֵ֜ן אֶת־הֲדַסָּ֗ה הִ֤יא אֶסְתֵּר֙ בַּת־דֹּד֔וֹ כִּ֛י אֵ֥ין לָ֖הּ אָ֣ב וָאֵ֑ם וְהַנַּעֲרָ֤ה יְפַת־תֹּ֙אַר֙ וְטוֹבַ֣ת מַרְאֶ֔ה וּבְמ֤וֹת אָבִ֙יהָ֙ וְאִמָּ֔הּ לְקָחָ֧הּ מָרְדֳּכַ֛י ל֖וֹ לְבַֽת׃
(7) He was foster father to Hadassah—that is, Esther—his uncle’s daughter, for she had neither father nor mother. The maiden was shapely and beautiful; and when her father and mother died, Mordecai adopted her as his own daughter.
Fun Fact:
Did you know that Hadassah is the name of a hospital in Israel? It was founded by the American women's organization which is also called Hadassah. Hadassah was nominated for a Nobel Peace Prize in 2005 for the advanced medical care that it gives to all, regardless of race, ethnicity or nationality.
Clue #2
Esther was told by Mordechai not to reveal that she was Jewish. Find the verse that says that Esther kept her Judaism hidden.
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