The Book of Esther is not historical rather is a work of fiction!.

How absurd a book inspired by God does not mention his name even Once!

The Book of Esther is supposed to be an inspired book. Yet In the entire book of Esther there is no mention of God. Not only does it not mention God once, it never mentions prayer to God or thanksgiving for deliverance how comes? It is a completely and brutally materialistic story of murder and robbery. How did this ever have into our Bible? According to the Jewish encyclopaedia the book 

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As to the historical value of the foregoing data, opinions differ. Comparatively few modern scholars of note consider the narrative of Esther to rest on an historical foundation. The most important names among the more recent defenders of the historicity of the book are perhaps Hävernick, Keil, Oppert, and Orelli. The vast majority of modern expositors have reached the conclusionthat the book is a piece of pure fiction, although some writers qualify their criticism by an attempt to treat it as a historical romance. The following are the chief arguments showing the impossibility of the story of Esther:

In view of all the evidence the authority of the Book of Esther as a historical record must be definitely rejected. Its position in the canon among the Hagiographa or "Ketubim" is the only thing which has induced Orthodox scholars to defend its historical character at all. Even the Jews of the first and second centuries of the common era questioned its right to be included among the canonical books of the Bible (compare Meg. 7a). The author makes no mention whatever of God, to whom, in all the other books of the Old Testament, the deliverance of Israel is ascribed. The only allusion in Esther to religion is the mention of fasting (iv. 16, ix. 31). All this agrees with the theory of a late origin for the book, as it is known, for example, from Ecclesiastes, that the religious spirit had degenerated even in Judea in the Greek period, to which Esther, like Daniel, in all probability belongs.

Esther could hardly have been written by a contemporary of the Persian empire, because (1) of the exaggerated way in which not only the splendor of the court, but all the events described, are treated (compare the twelve months spent by the maidens in adorning themselves for the king; the feasts of 187 days, etc., all of which point rather to the past than to a contemporary state of affairs); (2) the uncomplimentary details given about a great Persian king, who is mentioned by name, would not have appeared during his dynasty.

It is difficult to go so far as Grätz, who assignsEsther to an adherent of the Maccabean party in the reign of Antiochus Epiphanes. The vast difference in religious and moral tone between Esther and Daniel—the latter a true product of Antiochus' reign—seems to make such a theory impossible. Nor is the view of Jensen, followed by Nöldeke, more convincing to the unprejudiced mind. He endeavors to prove that the origin of the whole story lies in a Babylonian-Elamitic myth. He identifies Esther with the Babylonian goddess Ishtar (Aphrodite); Mordecai with Marduk, the tutelary deity of Babylon; and Haman with Hamman or Humman, the chief god of the Elamites, in whose capital, Susa, the scene is laid; while Vashti is also supposed to be an Elamite deity. Jensen considers that the Feast of Purim, which is the climax of the book, may have been adapted from a similar Babylonian festival by the Jews, who Hebraized the original Babylonian legend regarding the origin of the ceremonies. The great objection to such a theory is that no Babylonian festival corresponding with the full moon of the twelfth month is known.

The object of Esther is undoubtedly to give an explanation of and to exalt the Feast of Purim, of whose real origin little or nothing is known. 

can Christians prove the book of Esther was inspired by God and not Satan? Would Satan mention God's name no?