Frank Herbert's 'Dune' Series

I just read Dune, for the second time. Loved it, again.

I read it as a teenager, and I remember the end bit being quite boring and all about politics. However, this time I felt the book was over too soon. I also recall trying to read the second one 'Dune Messiah', and finding it boring and political like the end of the first, and couldn't stand it for more than a few chapters.

I just looked out Messiah. Wish me luck!

Dune is a great series.  The only book I hated was Messiah.
I'm missing God Emperor and Heretic, so I guess I need to go searching my local library.