80 Page Giant Magazine #11
In "The Kryptonite Man!", Superman faces his most devious foe yet when Lex Luthor weaponizes a liquid kryptonite serum, rendering the Man of Steel powerless at close range. With Al Plastino’s dynamic art bringing Otto Binder’s sharp script to life, Superman races to outwit Luthor’s latest scheme—only to find that even his lead suit isn’t safe when Luthor turns metal to glass. The cover by Curt Swan and George Klein captures the tension of this classic showdown.
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Luthor takes a liquid kryptonite serum which makes it impossible for Superman to get near him. Superman makes a lead suit to protect himself, but Luthor has discovered a way to turn lead into glass. Eventually, Superman tricks Luthor into thinking he has become immune to Luthor's kryptonite radiations and Luthor takes an antidote, leaving himself open to capture.
Plot details indexed by the Grand Comics Database (CC BY-SA).