The creative talent behind ACTION COMICS and SUPERMAN present the first monumental Superman crossover event following DC Rebirth in SUPERMAN REBORN, now available in paperback! Superman's life isn't what it used to be, and he was living with that. But now the world he has built is crumbling away because of a mysterious foe. Will he be able to salvage the life he knew before it disappears forever?Dan Jurgens, Peter J. Tomasi and Patrick Gleason—the creative talent behind ACTION COMICS and SUPERMAN—present the first monumental Superman crossover event following DC Rebirth in SUPERMAN REBORN!Collects ACTION COMICS #973-976 and SUPERMAN #18-19.