Dune: Sandworms of Dune : DUNE: The Dune Sequence Book 8(Dune‪)‬

As the no-ship Ithaca flees through space, the heroes of HUNTERS OF DUNE finally meet the Enemy who followed the violent fanatics, the Honored Matres, back to their universe. The thinking machines vanquished by Serena Butler's jihad were not destroyed, only driven into exile - and now, tens of thousands of years later, they are back. Can the resurrected heroes on board the Ithaca save our race from annihilation?
"I know nothing comparable to it except The Lord of the Rings." --Arthur C. Clarke on Dune
"Appealing and gripping...Fascinating detail, yet cloaked in mystery and mysticism." --Milwaukee Journal on Heretics of Dune
"The vast and fascinating Dune saga sweeps on---as exciting and gripping as ever." --Kirkus Reviews on Chapterhouse: Dune
"This compelling saga of men and women struggling for their freedom is required reading for Dune fans." --Library Journal on Dune: The Butlerian Jihad
"Dune addicts will happily devour Herbert and Anderson's spicy conclusion to their second prequel trilogy." --Publishers Weekly on Dune: The Battle of Corrin
"Entertaining." --Publishers Weekly on Hunters of Dune