Justice League of America #91
☆ Be the first to review + Add to your collection — Join freeJustice League of America #91 marks the ninth annual JLA–JSA summer crossover — a tradition that had become one of the most eagerly anticipated events on the DC calendar since 1963 — and for the first time in the series' history it deliberately mirrored each team's roster so that counterpart heroes from Earth-One and Earth-Two appeared together: two Supermen, two Flashes, two Green Lanterns, two Hawkmen, and two Atoms. Most distinctively, it brought both Robins — the Earth-One Teen Titan and the adult Earth-Two Golden Age Robin — into the same story for the first and, to date, only time either Robin had teamed up alongside both teams simultaneously. Writer Mike Friedrich also pushed the title's storytelling conventions by crafting a crisis with no conventional villain at its core — the threat was a frightened alien child and his symbiotic pet, stranded across dimensional barriers — a genuinely unusual structural choice for a superhero team book of the era.
In "Earth—The Monster-Maker!", the Justice League of America faces a dual threat as alien A-Rym and his symbiotic pet Teppy wreak havoc across Earth-1 and Earth-2. Written by Mike Friedrich and illustrated by Dick Dillin with inks by Joe Giella, the story unfolds with a split focus: while the Justice Society battles A-Rym on Earth-2, young Robin on Earth-1 takes on the dangerous Teppy alongside the JLA. The dynamic duo of Neal Adams on cover pencils and inks delivers a striking visual that captures the cosmic stakes.
In "Earth—The Monster-Maker!", a wild joyride gone wrong sends alien A-Rym tumbling through the dimensional barrier between Earth-1 and Earth-2, separating him from his symbiotic pet, Teppy. As the Justice Society battles A-Rym on Earth-2, young Robin charges in recklessly—only to find his counterpart on Earth-1 facing off against Teppy with the same urgent stakes. The story unfolds across both worlds, weaving tension and parallel action without revealing how it all resolves.
In "The Hour Hourman Died!", Hourman races against time when Tricky Dick's experimental weapon triggers a dangerous reaction with his Miraclo energy, threatening to kill him unless he finds a cure within the hour. With his life hanging on a ticking clock, Hourman must push his limits in a desperate bid to survive.
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The issue was written by Mike Friedrich, pencilled by Dick Dillin, and inked by Joe Giella — the regular JLA creative team of the period — under editor Julius Schwartz, whose editorial records (later provided to the Grand Comics Database by DC Comics) confirmed those credits. The cover was fully rendered by Neal Adams and lettered by Gaspar Saladino. JLA #91 was also the first plus-sized regular issue of the series following DC's 1971 price increase, which required Schwartz to pad the page count with back-up reprints; he filled the extra pages with a reprint of the Gardner Fox/Dick Dillin/Sid Greene Hourman story 'The Hour Hourman Died!' (originally from Spectre #7) and an earlier science-fiction yarn featuring the Knights of the Galaxy (originally from Mystery in Space #6, 1952). Friedrich had been deliberately introducing Marvel-style issue-to-issue continuity into the book, and JLA #91 continues a thread begun in issue #90 while simultaneously planting a subplot — Batman and Green Arrow answering an Aquaman distress signal — that would pay off several issues later.
Trivia · 8 facts
- Cover date: August 1971; published by National Periodical Publications (DC Comics); released June 1971.
- Main story titled 'Earth — The Monster-Maker!'; written by Mike Friedrich, pencilled by Dick Dillin, inked by Joe Giella, edited by Julius Schwartz.
- Cover pencilled and inked entirely by Neal Adams, with lettering by Gaspar Saladino.
- First and only time both the Earth-One (Silver Age) Robin and the Earth-Two (Golden Age) Robin appeared together alongside the full JLA and JSA rosters in the same story.
- The ninth annual JLA–JSA interdimensional team-up crossover, and the first to deliberately feature matching counterpart heroes from both teams in the same issue (two Supermen, two Flashes, two Green Lanterns, two Hawkmen, two Atoms, two Robins).
- Primary antagonists are not villains but a symbiotic alien boy (A-Rym) and his pet (Teppy), separated across Earth-One and Earth-Two — with Solomon Grundy appearing as a secondary threat in the story's second chapter (concluded in JLA #92).
- The issue was the first plus-sized regular issue of the JLA series, containing two reprint back-ups: 'The Hour Hourman Died!' (from Spectre #7, script Fox, art Dillin/Greene) and a Knights of the Galaxy story (from Mystery in Space #6, 1952), added to meet the expanded page count required by DC's 1971 price increase.
- The story arc (JLA #91–92) was later reprinted in the DC collected edition Justice League of America: The Last Survivors of Earth (2019) and in Crisis on Multiple Earths vol. 2 (2021).
Full credits
Reprints
↩ Reprints Mystery in Space #6 (1952), The Spectre #7 (1968)
Reprinted in All Favourites Comic #96 (1973), Crisis on Multiple Earths #3 (2004), Showcase Presents: Robin the Boy Wonder #1 (2008), Showcase Presents: Justice League of America #5 (2011), Justice League of America Archives #10 (2012), Justice League of America: The Bronze Age Omnibus #1 (2017), Justice League of America: The Last Survivors of Earth #[nn] (2019), Crisis on Multiple Earths #2 (2022), Baticomic #57
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