The book picks up where Heretics of Dune left off ... The six original Dune books cover a period of thousands of years. By the end, a lot of roads has been travelled. There is resolution, but ...

Many consider it the worst Dune book, but it's actually a great epilogue for the entire saga. Heretics of Dune takes place 1500 years after God Emperor of Dune's heavily built-up events.