around the commodity of water, which is extremely scarce on Arrakis. The Fremen await the coming of a prophesied messiah, not suspecting that this prophecy had been planted in their legends by the Missionaria Protectiva, an arm of the Bene Gesserit dedicated to religious manipulation to ease the path of the Sisterhood when necessary. In Dune, the so-called "Arrakis Affair" puts unexpected Kwisatz Haderach Paul Atreides in control of first the Fremen people and then Arrakis itself. Absolute control over the spice supply allows Paul to depose Shaddam and become ruler of the known universe, with Shaddam's eldest daughter Princess Irulan as his consort. With a bloody jihad subsequently unleashed across the universe in Paul's name but out of his control, the Bene Gesserit, Tleilaxu, Spacing Guild, and House Corrino conspire to dethrone him in Dune Messiah (1969). Though the plot fails, the Atreides Empire continues to devolve in Children of Dune (1976) as the religion built around Paul falters, Irulan's sister Wensicia conspires to place her son Farad'n on the throne, and Paul's twin heirs Leto II and Ghanima rise to power. The Heroes of Dune series (2008–2009) by Brian Herbert and Kevin J. Anderson chronicles the major events that take place between Dune: House Corrino (2001) and Dune: The Duke of Caladan (2020), between Dune (1965) and Dune Messiah (1969), and between Dune Messiah and Children of Dune (1976). The reign and fall of the God Emperor At the time of God Emperor of Dune (1981), Paul's son, the God Emperor Leto II Atreides, has ruled the Empire for 3,500 years from the verdant face of a transformed Arrakis; melange production has ceased. Leto has forced the sandworms into extinction, except for the larval sandtrout with which he had forged a symbiosis, transforming him into a human-sandworm hybrid. Human civilization before his rule had suffered from twin weaknesses: that it could be controlled by a single authority, and that it was totally dependent upon melange, found on only one planet in the known universe. Leto's prescient visions had shown that humanity would be threatened by extinction in any number of ways; his solution was to place humanity on his "Golden Path," a plan for humanity's survival. Leto governs as a benevolent tyrant, providing for his people's physical needs, but denying them any spiritual outlets other than his own compulsory religion (as well as maintaining a monopoly on spice