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Justice League of America #41 cover
Cover: Mike Sekowsky & Murphy Anderson

Justice League of America #41

Dec 1965 · DC · 0.12 USD
📊 ~62,262 copies sold its debut month
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“The Key-Master of the World!”
★ 1st appearance — The Key
About this Issue

Justice League of America #41 introduces the Key, a Silver Age villain whose core concept — a scientist who uses psychotropic 'psycho-chemicals' to literally unlock human mental potential and weaponize perception — gave the JLA one of its most conceptually distinctive rogues. The issue is also a quiet showcase for Hawkgirl (Shayera Hol) as an independent problem-solver: it is she, not any League member, who notices the Key's scheme and breaks the team out of their chemically induced stupor, making a pointed if oblique argument for her own membership in a club that had excluded her. The story seeded a cliffhanger teaser (resolved three years later in JLA #63) at a time when DC largely avoided issue-to-issue continuity, a small but notable exception to the era's editorial norms. Decades later, Grant Morrison would resurrect the Key as the centerpiece of JLA #8–9 (1997), directly crediting Fox's original psycho-chemical premise as the springboard for one of his own most celebrated arcs.

In "The Key-Master of the World!", the Justice League of America faces a mind-bending threat when a mysterious villain uses a psycho-chemical to force them to disband and blind them to his henchmen’s crimes. Written by Gardner Fox and illustrated by Mike Sekowsky, with inks by Bernard Sachs and letters by Gaspar Saladino, this 1965 classic sees Hawkgirl unravel the deception and rally the team to reclaim their unity. The cover, by Mike Sekowsky and Murphy Anderson, captures the tension of the moment with striking precision.

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History

The issue was produced by the standing Silver Age JLA team working under editor Julius Schwartz: writer Gardner Fox, penciler Mike Sekowsky, and inker Bernard Sachs — credits verified against Schwartz's own editorial records held by DC Comics. Fox's scripts for this era routinely incorporated kryptonite as a narrative workaround to prevent Superman from resolving plots single-handedly, a habit noted and critiqued by contemporary readers in the issue's own letters column context. The story title 'The Key-Master of the World!' went uncredited on the indicia page, which was standard practice for DC at the time; credits were later reconstructed via The Official Justice League of America Index.

Trivia · 8 facts

  • First appearance and origin of the Key (real name unrevealed), a scientist who experiments on himself with 'psycho-chemicals' to expand his ten senses to superhuman levels, created by writer Gardner Fox and penciler Mike Sekowsky.
  • The Key's scheme hinges on drugging JLA mascot Snapper Carr into lacing the team's punch bowl with a psychotropic compound, causing the League to voluntarily disband and rendering them blind to the Key and his 'Key-Men' henchmen.
  • Hawkgirl (Shayera Hol/Thal) serves as the story's pivotal hero: unaffected by the drug, she spots the Key-Men robbing a bank in plain sight of a helpless Hawkman and ultimately breaks the League out of their chemically induced state.
  • The issue features cameo appearances by villains from members' solo titles — the Wrecker, the Weather Wizard, and the Invisible Destroyer — as the disbanded Leaguers inadvertently continue fighting crime solo.
  • Full creative credits: script by Gardner Fox, pencils by Mike Sekowsky, inks by Bernard Sachs, letters by Ira Schnapp, editing by Julius Schwartz. The on-sale date was October 28, 1965.
  • The story is structured across 24 pages divided into three roughly equal chapters of approximately 7.67 pages each — a formal device Fox used regularly across the JLA's Silver Age run.
  • The issue ends with a teaser cliffhanger: a hidden 'Cosmi-Key' device planted by the Key in JLA headquarters, a plot thread not resolved until Justice League of America #63 (1968).
  • The issue has been reprinted in Justice League of America Archives Vol. 6 (2000), Showcase Presents: Justice League of America Vol. 3 (2007/2008), and Justice League of America: The Silver Age Omnibus Vol. 2 (2016); it also received contemporary international reprints in Swedish (Stålmannen #9/1966) and Danish (Superman/Interpresse #17).

Cast · 20 characters

Full credits

cover pencils Mike Sekowsky
cover inks Murphy Anderson

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

The Key administers a psycho-chemical to the JLA which forces them to disband and become unable to see his henchmen commit robberies. However, they are returned to normal when Hawkgirl discovers the situation, and go on to defeat The Key.

Plot details indexed by the Grand Comics Database (CC BY-SA).

Key issues in Justice League of America

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