Superman#90
Cover: Win Mortimer & Win Mortimer
Superman #90
“Superman's Last Job!”
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Full credits
writer Bill Finger
artist Wayne Boring
inker Stan Kaye
cover pencils Win Mortimer
cover inks Win Mortimer
Full plot ⚠ may contain spoilers
▸ Reveal full plot — may contain spoilers
Luthor has explosives placed in all of the world's greatest structures, then forces Superman to steal them and bring them to a valley for him. Superman fogs the valley, removes and replaces the structures so Luthor won't realize what he is up to, then dunks them in water to keep the bombs from exploding, before restoring them to their proper locations.
Plot details indexed by the Grand Comics Database (CC BY-SA).