Distant Fires — Howard Chaykin

The Last Son of Krypton -- and many other heroes of the DC Universe -- must endure a devastating nuclear winter in a future that pits friend against friend in a desperate quest to survive and begin life on Earth anew! Wonder Woman, Flash, Captain Marvel, and others struggle alongside Superman to survive the ravages of a world they failed to save once. But will the world survive when some of the remaining heroes succumb to the insanity and despair of their situation? ...