Dune: The Duke of Caladan (The Caladan Trilogy, 1) [Herbert, Brian and Anderson, Kevin J.]

Duke Leto Atreides is a name of legend. Duke of Caladan and father to Paul, this is the story of how Leto discoverd a grand plot to betray the Imperium, and how he rose to prominence in the eyes of the Emperor. Surrounded by conspirators and would-be assassins, Leto Atreides will put his life, and the lives of his family, on the line for the sake of duty.

This is the first book in a brand new prequel trilogy that pulls the curtain back on a iconic world.