Superman #17/1980

In a tense tale from Superman #17 (1980), Superman races to contain a reactor on the brink of meltdown after a phantom thief steals its cooling rods. With the help of Lois Lane, Jimmy Olsen, and Dr. Jenet Klyburn at S.T.A.R.-Labors, he tracks the mysterious Kurier Kobold Phantom to its source—uncovering a chilling truth that forces a confrontation with the alien courier himself.

In a twist of fate, Superman and Batman find themselves drawn into the simulated world of their sons’ adventures within Superman’s Supercomputer. As the two heroes navigate a reality where their children’s exploits take on a life of their own, their presence triggers unforeseen chaos—forcing them to confront the consequences of their interference. With no way back, the only path left is into the depths of the Festung der Einsamkeit.