Dune: The Duke of CaladanA legend begins in Dune: The Duke of Caladan, first in The Caladan Trilogy by New York Times bestselling authors Brian Herbert and Kevin J. Anderson. This new Dune trilogy focuses on the beloved core characters of Frank Herbert's classic novel Dune, the world's bestselling science fiction book. Leto Atreides, Duke of Caladan and father of the Muad'Dib. While all know of his fall and the rise of his son, little is known about the quiet ruler of Caladan