The Messianic Scenario of Hai Gaon. Written in the 11th century, this is one of finest, and most complete renditions of the messianic scenario that takes into account all of the previous sources that developed since Talmudic times. We see here new takes on old topics, with emphasis on scriptural proof texts. The Armilus legend, while mentioned is downplayed, while an old Biblical teaching, curiously absent from the previous scenarios pops up here, this is Gog and Magog. Hai Gaon discusses the resurrection of the dead, and we see here its polemic purpose. He also speaks about how all Israel are to be resurrected, and inserts a Halakhic directive to encourage his readers to follow the practice of reciting vidui (confession) on one's deathbed to assure one's forgiveness before one dies. Some early parts of this scenario have been applied to modern times, we address if such applications have any factuality. Overall, this scenario is one of the best, and most complete of the genre.