This story contains minor spoilers for the first two Dune films and Dune: Part Three. Welcome back Paul Atreides (and farewell, Marty Supreme). The trailer for Dune: Part Three dropped yesterday, and it looks like the conclusion of Denis Villeneuve’s Dune trilogy will be as strange and epic as Frank Herbert’s series deserves. We only have two and a half minutes of footage to ponder so far, but there’s plenty in there for someone like me, GQ’s Dune guy at large, to unpack. In the past, I’ve addressed pressing questions such as “Is the spice worm shit?” and “What even is Dune: Prophecy?” Now, I offer you a more or less spoiler-free primer on what to expect from Timothée Chalamet’s next go-round as the Kwisatz Haderach. Which Dune book is Dune: Part Three based on? Rebecca Ferguson in Dune: Part Three Courtesy of Warner Bros. Dune Part 3 will be adapted from Dune Messiah, the sequel to Dune and the second book in Frank Herbert’s series. Messiah is a popular science fiction title, but not nearly as popular as its predecessor. That’s mostly attributable to a big change in tone between the first and second books. In the first novel (which became the first two Villeneuve films), Timothee Chalamet’s character, Prince Paul Atreides, goes on a classic hero’s journey. He ventures into the wilds (a big ol’ desert planet), experiences an awakening (by huffing spice, a psychedelic that unlocks human potential), and eventually makes his triumphant return (vanquishing Stellan Skarsgård and Austin Butler). But you can also view Dune as a revenge play—a psychic princeling punishes an emperor, then an entire galaxy, for killing his daddy. Dune Messiah picks up the story over a decade later and suggests that perhaps Paul isn’t such a hero after all—Paul certainly doubts himself. He’s launched a genocidal holy war across the universe. Maybe that wasn’t such a good idea? Villeneuve seems eager to tackle the more complex ethics of Dune Messiah. In the trailer, we see the Bene Gesserit (that’s Dune for witchy space nun) Lady Jessica sternly reminding Paul that his dad didn’t start any wars, implying that Paul has no one to blame but himself for his situation. That situation features new threats and even more new sci-fi weirdness—and a few new interpersonal complexities as well.