The boy was conceived with perfect genetics since Norma telepathically tinkered her reproductive system, permitting only the optimum sperm and egg to unite.
He also assisted his mother to become the first Navigator
When Adrien was old, Norma convinced him to enter a spice tank in order to become a Navigator like her. Unfortunately, his body was too old an inflexible, and he drowned in spice. Norma grieved for many years, refusing to get close to anyone else again, until her great-grandson Josef managed to get through to her.