Man of Two Worlds

In Frank Herbert's last published novel, coauthored with his son Brian, a hedonistic human named Lutt Hansen, Jr. finds himself in a precarious situation after a spaceship accident leaves him sharing his body and mind with a naïve alien dreamer. As they navigate a universe potentially created by alien minds, the duo faces various dangers, schemes, and assassination attempts, raising the question of whether they can survive their own conflicting natures.