Cover: Dick Giordano

Adventure Comics #409

Aug 1971 · DC · 0.25 USD

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“Invasion of the Mer-Men! Part 2”

In "Invasion of the Mer-Men! Part 2," Supergirl races to uncover the truth behind a mysterious Crimson Virus that’s incapacitating the female Legionnaires, while Satan Girl exploits the chaos to infiltrate their ranks. Written by Edmond Hamilton and brought to life with crisp precision by Curt Swan and George Klein, this 1971 DC classic sees the hero unravel a deeper conspiracy beneath the surface. The cover, a striking double-draw by Dick Giordano, captures the tension with bold, dynamic lines.

writer Edmond Hamilton · artist Curt Swan · inker George Klein · letterer Milton Snapinn · cover Dick Giordano

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Full credits

writer Edmond Hamilton

artist Curt Swan

inker George Klein

letterer Milton Snapinn

cover pencils, inks Dick Giordano

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

After the female Legionnaires are struck by a mysterious Crimson Virus, Satan Girl wants to take their place. But when she attacks the girls, Supergirl tries to solve the mystery of who she is.

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