Superman #91

Superman faces off against a rampaging Brainiac 13 as the villain's techno-organic virus continues to transform Metropolis into a nightmarish future city. This issue is part of the "Y2K" crossover event that ran through all the Superman titles, depicting the Man of Steel's desperate battle to save his adopted home from being consumed by alien technology. The creative team delivers high-stakes action as Superman must find a way to stop an enemy whose power seems to grow with every passing moment.