Cover: Curt Swan & Stan Kaye

Action Comics #271

Dec 1960 · DC · 0.10 USD

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“Voyage to Dimension X!”

In "Voyage to Dimension X!", Supergirl constructs her own hidden Fortress of Solitude, only to have her privacy breached when explorers discover it and threaten to expose her unless she grants them wealth and power. Written by Jerry Siegel and illustrated by Jim Mooney, this 1960 classic blends cosmic mystery with a personal stakes-driven dilemma, all framed by Curt Swan’s iconic cover and Stan Kaye’s dynamic inks.

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writer Jerry Siegel · artist, inker Jim Mooney · cover Curt Swan, Stan Kaye

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Full credits

writer Jerry Siegel

artist, inker Jim Mooney

cover pencils Curt Swan

cover inks Stan Kaye

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

Supergirl builds herself a secret Fortress of Solitude, but it is found by explorers who use the information to blackmail Supergirl into making them rich.

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