The secret golden-haired son of Darrow and Mustang, hidden through the war and revealed at its end—the future the Rising was fought to build.
Pax is the son of Darrow and Mustang, named for the joyful Telemanus giant who died shielding Darrow at the Institute. Born nine months after the Lion's Rain—while Darrow lay imprisoned in the Jackal's stone box—he was kept a total secret: Mustang hid her pregnancy aboard the Dejah Thoris, gave birth, and left the infant to be guarded by Kavax's wife in the asteroid belt before returning to war, terrified that the Society's enemies would hunt him if his existence were known. His safety was the true reason for the peace Mustang sought and for the years she tested Darrow's capacity to be a father, not only a sword.
At the war's end he is brought onto a wild Earth beach in his grandmother's arms—a laughing, golden-haired child chasing gulls with Kavax's fox Sophocles—and revealed to a disbelieving Darrow as his son: the living future all the sacrifice was for.
A small, laughing infant with golden hair, carried in his grandmother's arms on an Earth beach, delighting in the salt wind and the gulls.
The hidden son of Darrow and Mustang; the child whose safety shaped the war's end and who embodies the future the Rising fought to build.
Also appears in books you've already read — spoiler-safe to their endings: