Using Frank Herbert's final outline - hidden in a bank safe deposit box for eleven years - Brian Herbert and Kevin J. Anderson now tell the grand climax of the story left unfinished in CHAPTER HOUSE: DUNE, and continued in HUNTERS OF 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?