For the two authors of this book, envisioning the path from concept to finished manuscript is akin to a pair of Guild Navigators at the helm of the same Heighliner searching for a safe path through foldspace. The first navigator in the fantastic Dune universe was, of course, Frank Herbert. But he did not do it alone, as Beverly Herbert devoted almost four decades of support and devotion to him. We are greatly indebted to them both. We are also grateful to the Herbert family, including Penny, Ron, David, Byron, Julie, Robert, Kimberly, Margaux, and Theresa, who have entrusted Brian and Kevin with the care of Frank Herbert’s extraordinary vision.

Our wives, Jan Herbert and Rebecca Moesta Anderson, have contributed in ways that go far beyond anything either of them contemplated when they took their wedding vows. Both of them are artists in their own right— Jan is a painter and Rebecca is a writer— and they have contributed immense amounts of their own time and talents to the story you are about to read.

We are also indebted to many other people who assisted us in another epic, colorful journey across the Dune canvas. This includes our dedicated agents and staff, Robert Gottlieb, John Silbersack, Kim Whalen, Matt Bialer, and Kate Scherler. Our American and U.K. publishers have shared our vision and have kept all matters of production and promotion on track— thanks especially to Tom Doherty, Carolyn Caughey, Linda Quinton, and Paul Stevens. Our extraordinary editor, Pat LoBrutto, has tended to our stories like a fine chef, adding just the right seasonings where needed. Rachel Steinberger, Christian Gossett, Dr. Attila Torkos, and Diane E. Jones provided much-needed advice, while Catherine Sidor worked tirelessly to transcribe dozens of microcassettes and to input corrections on the manuscript.