The Sun is dying. Earth is running out of time. As the Sun enters an irreversible collapse, humanity faces a choice without precedent: remain and vanish, or abandon the only world it has ever known. The answer comes in steel, mathematics, and sacrifice-five massive Exodus-class starships designed to carry the last hope of civilization beyond the Solar System. At the center of the effort is Prometheus, the fleet's pathfinder, and the experimental Corridor-a spacetime resonance tunnel that bends light-years into weeks. Commanders, engineers, scientists, and millions of ordinary people are drawn into a single undertaking that will redefine survival itself. The Dying Light follows the final years of Earth and the launch of humanity's first interstellar evacuation. From orbital shipyards and political reckoning to the silence of deep transit, the novel explores what is saved-and what is lost-when survival becomes duty. There are no heroes untouched by consequence, no easy victories, and no return. As the last ships depart and Earth fades into memory, humanity commits to an uncertain future among the stars-carrying with it not conquest or certainty, but continuity. A sweeping, grounded science-fiction epic about extinction, endurance, and the cost of choosing tomorrow.