The son of Darrow and Virginia au Augustus, and named after their friend from The Institute, Pax was conceived during their time together in Golden Son. His father was imprisoned before he even learned of his existence, and Virginia gave birth to him while Darrow was held by The Jackal. He was taken care of by Kavax au Telemanus's wife during the events of Morning Star, with Virginia not wanting to tell Darrow of his existence until he proved to her that he could be a builder and not just a destroyer. Darrow meets their son at the end of Morning Star on Earth, having successfully proven himself to Virginia. Darrow vows to make the world a better place for the sake of his son, and one day promises to tell him of the deeds and virtues of his friends and loved ones.