Esther belonged to God's special people, the Jews. Esther and many other Jews lived in the land called Persia. Persia was a long way from their own land.
The king of Persia was angry with the queen and he sent her away. Then he searched for another wife who would be the new queen. He chose Esther.
One of the king's chief officials, called Haman, hated the Jews and he plotted to destroy them. But Esther's uncle Mordecai asked Esther to speak to the king to save the Jews. Although Esther was the queen, Mordecai was asking her to do a dangerous thing. People could not go to see the king if he had not invited them. But Esther did what Mordecai asked. The king was pleased with her and listened to her. The king gave to the evil Haman the punishment that Haman had wanted to give to the Jews.
The book of Esther does not mention the name of God. This is strange for a book that is in the Bible. Sometimes God seems to be silent. We might even think that he does not care about us. The writer of the book of Esther probably wanted his readers to realise that God is always in control. Although we cannot see God, he is always doing things in the world. Nobody can stop his plans. The events in the book of Esther show us that God is in control.