In the LXX, the Book of Esther has some extra text before and after, like a set of bookends. Ahead of the beginning is:
And this interpretation after the end:In the second year of the reign of Ahasuerus the great, on the first day of the month of Nisan, Mordecai, the son of Jair, the son of Shimei, the son of Kish, of the tribe of Benjamin, had a dream. He was a Jew, and dwelt in the city of Susa, a great man, who was a servant in the king's court. He was also one of the captives, which Nebuchadnezzar the king of Babylon carried from Jerusalem with Jeconiah king of Judea; and this was his dream:
Behold a noise of a tumult, with thunder and earthquakes and uproar in the land: And behold, two great dragons came forth ready to fight, and their cry was great. And at their cry all nations were prepared to battle, that they might fight against the righteous people. And lo, a day of darkness and obscurity, tribulation and anguish, affliction and great uproar, upon the earth. And the whole righteous nation was troubled, fearing their own evils, and were ready to perish. Then they cried unto God, and upon their cry, as if from a little fountain, arose the greatest flood and many overflowing waters. The light and the sun rose up, and the lowly were exalted, and devoured the glorious.
Now when Mordecai, who had seen this dream, and what God had determined to do, was awake, he kept this dream in mind, and until night by all means desired to understand it. And Mordecai took his rest in the court with Gabatha and Tharra, the two eunuchs of the king, and keepers of the palace. And he heard their plan, and searched out their purposes, and learned that they were about to lay hands upon Ahasuerus the king; and so he testified to the king about them. Then the king examined the two eunuchs, and after they had confessed, they were strangled. And the king made a record of these things, and Mordecai also wrote thereof. So the king commanded, Mordecai to serve in the court, and for this he rewarded him. However, Haman, the son of Hammedatha the Agagite, was in great honor with the king, and sought to injure Mordecai and his people because of the two eunuchs of the king.
Then Mordecai said, “God has done these things. For I remember a dream which I saw concerning these matters, and nothing thereof has failed. A little fountain became a river, and there was light and the sun and much water: this river is Esther, whom the king married and made queen; and the two dragons are myself and Haman. And the nations were those which were assembled to destroy the name of the Jews; and my nation is this Israel, who cried to God and were saved, for the Lord has saved his people, and the Lord has delivered us from all those evils, and God has wrought signs and great wonders, which have not been done among the Gentiles. Therefore he has made two lots, one for the people of God and another for all the Gentiles. And these two lots came at the hour and time and day of judgment, before God among all nations. So God remembered his people and justified his inheritance. Therefore those days shall be given to them in the month Adar, the fourteenth and fifteenth day of the same month, with an assembly and joy and with gladness before God, according to the generations for ever among his people.”In the fourth year of the reign of Ptolemeus and Cleopatra, Dositheus, who said he was a priest and Levite, and Ptolemeus his son, brought this letter of Purim, which they said was the same, and that Lysimachus the son of Ptolemeus, who was in Jerusalem, had translated it.
Nice.