Cover: Mike Sekowsky & Murphy Anderson

Justice League of America #40

Nov 1965 · DC · 0.12 USD

📊 ~68,672 copies sold its debut month

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“Indestructible Creatures of Nightmare Island!”

In "Indestructible Creatures of Nightmare Island!", the Justice League of America faces a terrifying mystery when a peace machine built by inventor Andrew Helm spirals into chaos, unleashing nightmarish illusions drawn from the heroes' deepest fears. Written by Gardner Fox and illustrated by Mike Sekowsky, with inks by Bernard Sachs and lettering by Gaspar Saladino, this 1965 classic sees the team confronting psychological horrors they can't touch—until they track the source back to the malfunctioning device. The cover by Mike Sekowsky and Murphy Anderson captures the eerie tension of the island's waking nightmare.

writer Gardner Fox · artist Mike Sekowsky · inker Bernard Sachs · letterer Gaspar Saladino · cover Mike Sekowsky, Murphy Anderson

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Cast · 22 characters

Full credits

writer Gardner Fox

artist Mike Sekowsky

inker Bernard Sachs

letterer Gaspar Saladino

cover pencils Mike Sekowsky

cover inks Murphy Anderson

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

Andrew Helm creates a machine intended to create world peace, but which malfunctions and causes evil. The Justice League of America traces the source of the mayhem, battles illusory creatures summoned from their subconscious minds, and turns off the malfunctioning machine.

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