Superman #213
In "The Most Dangerous Door in the World!", Superman confronts a mysterious device from space in his Fortress of Solitude, unaware of the peril it holds. When the machine detonates, it triggers a catastrophic event that leaves Superman, Supergirl, and Krypto as the sole survivors on a shattered Earth. Written by Jerry Siegel and illustrated by Al Plastino, with a striking cover by Neal Adams, this 1969 classic blends cosmic mystery with the hero’s enduring resolve.
In the quiet solitude of his Fortress, Superman examines a mysterious device pulled from the void—only for it to detonate, shattering Earth and leaving him, Supergirl, and Krypto as the last beings of their world. Now adrift among the stars, they must navigate the wreckage of a dead planet and the cold indifference of the Interstellar Council of United Planets, where survival means confronting not just the past, but the fragile hope of a future.
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Reprints
↩ Reprints Superman #144 (1961)
Reprinted in Superman et Batman et Robin #8 (1969), Superman Supacomic #121 (1969), Die großen Superhelden #1 (1981), The Best of DC #27 (1982), The Superman Gallery #1 (1993), Superman #23
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