Pol Atreid, the mysterious Muad'Dib, Lord of Arrakis, has left the Galaxy forever. The years of his reign flew by, like the years of his life. The era of Duna's children - the twins Leto and Ganima - has begun. They have concentrated formidable power - thanks to the memory of their ancestors, they are not childishly wise and have the gift of foresight. Enemies challenge the Atreides empire. Traitors of the dynasty set traps of intrigue. Arrakis is threatened by an economic crisis. Meanwhile, a rumor about a mysterious Preacher is spreading around the planet. They say it is the great Muad'Dib himself who has returned...