What book is ‘Dune: Prophecy’ based on?

nme.com:

Dune: Prophecy is now under way, but how does the series relate to the feature films and what book is it based on? Read on for all the info.The first episode of the show aired on HBO on Sunday (November 17), with the remaining five instalments set to arrive on a weekly basis, culminating on December 22.

UK viewers can watch it on Sky Atlantic and NOW.The show has been developed by Diane Ademu-John and Alison Schapker and tells the story of the origins of the Bene Gesserit, a powerful order of women who are skilled in politics, influence and physical conditioning.It specifically follows Valya (Emily Watson) and Tula Harkonnen (Olivia Williams) as they combat forces that threaten the future of humanity, who ultimately establish the Bene Gesserit sect.In a four star review of the new show, NME wrote: “It’s nice to see a show about magic actually solve problems with magic, while the fear felt by students at The Sisterhood as things start to dissolve into chaos should hopefully inspire the upcoming Harry Potter remake.

The glimpse of the Great Machine War also tees up a prequel to the prequel if things go well and you don’t need to be Bene Gesserit to see more Dunespin-offs in HBO’s future.”Denis Villeneuve, who directed the two recent Dune films, confirmed in September that a third film, Dune: Messiah, will be his last for the franchise: “Listen, if Dune: Messiah happens, it will have been many years for me on Arrakis, and I would love to do something else.

I think that it would be a good idea for me to make sure that, in Messiah, there are the seeds in the project if someone wants to do something else afterwards, because they are beautiful books.“They are more difficult to adapt.