Recently, I've watched the "Children of Dune" miniseries made in 2003. Before that, I have only read the first novel and watched the "Dune" miniseries, which was really good.
Overall, "Children of Dune" is a nice sequel, though I doubt it outdoes the first miniseries, which was marvelous IMO.
Also, apparently it is a composition of two books: "Children of Dune" and "Dune Messiah"
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Not reading the books, I've watched the movie with mixed feelings. The plot, while perhaps even more complex than the first book, is confusing and sometimes frustrating.
What I cannot understand are the action of Muad'dib.
In the first novel, Muad'dib becomes the most powerful man in the universe. He is the messiah of the Fremen, and the Quisatz Hederach, the man with the greatest prescience powers, he is almost a god in the flesh. He defeats his enemies and makes the Emperor give up his throne. It seems that nothing remains in the way of his rightful judgment.
And yet 12 years later, he gives up everything. Blinded and broken after the death of his loved one, he wanders to the desert, abandoning his empire which could, without his guidance, be swept into chaos.
Furthermore, he continues to make efforts to disgrace his name, and destroy the legacy which he, himself, has worked so hard to create.
This all is very confusing, as the whole view of Arakkis in Muad'dib's eyes is turned upside down. At first he was an agent of change: "The way has changed!" was his motto. His dream was to transform the desert planet into a blooming paradise with seas and wildlife.
But later it seems somehow that the dream has become a nightmare; "The desert is dying!". Quite a strange motto, since desert usually means death and obliteration. So now he wishes to undo the change? Why? It bothers my mind!