Superman#154
Cover: Curt Swan & George Klein
Superman #154
“The Underwater Pranks of Mr. Mxyzptlk!”
Supergirl discovers why Superman has begun to act evil at random intervals, and it all goes back to before Krypton exploded.
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Cast · 14 characters
Full credits
writer Jerry Siegel
artist Curt Swan
inker George Klein
cover pencils Curt Swan
cover inks George Klein
Full plot ⚠ may contain spoilers
▸ Reveal full plot — may contain spoilers
Supergirl discovers why Superman has begun to act evil at random intervals, and it all goes back to before Krypton exploded.
Plot details indexed by the Grand Comics Database (CC BY-SA).