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Aquaman #56 cover
Cover: Nick Cardy

Aquaman #56

Mar 1971 · DC · 0.15 USD
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In "The Creature That Devoured Detroit!", Aquaman faces a terrifying green slime spreading from Lake Erie toward Detroit, leading him to investigate with Don Powers, the blind former hero known as the Crusader. Though now reliant on a high-tech satellite to fight crime, Powers' failing eyesight puts him in danger—until a tragic fall ends his crusade. Aquaman, moved by the man's sacrifice, takes drastic action by destroying the very device meant to protect the city. Written by Steve Skeates and illustrated with striking detail by Jim Aparo, this 1971 DC classic blends urban dread with a poignant tale of legacy and loss, all framed by Nick Cardy’s iconic cover.

Contains 2 stories
The Creature That Devoured Detroit!
20 pp · Superhero
AquamanCrusader [Don Powers] (death)GeorgeEthelDon (looks like Ed McMahon)Warren Savin (looks like Johnny Carson)Denise LovelyMarvin WalsonDr. William Neilson"Shorty" Thomasunnamed police officerPhil (security guard)Sam (scientist)unnamed scientistsKarenKaren's motherMrs. Selma Mae Stanley

In "The Creature That Devoured Detroit!", Aquaman teams up with Don Powers, the blind former superhero known as the Crusader, to stop a monstrous green slime spreading from Lake Erie toward Detroit. Though Powers has retired from active duty, his secret satellite—meant to prevent crime—has accidentally unleashed the threat, and as Aquaman uncovers the truth, he must confront the cost of justice when the Crusader's final mission ends in tragedy.

The Cave of Death!
2 pp · Superhero
Aquagirlunnamed boy

ComicBooks.com Value

Our Model is In Beta
Raw (Fine) $17
CGC 9.8 · 3 in census $836*
CGC 9.6 · 10 in census $248*
CGC 9.4 · 15 in census $143
CGC 9.2 · 10 in census $112
CGC 9.0 · 7 in census $84
CGC 8.5 · 5 in census $79
Show all 14 grades
CGC 8.0 · 4 in census $64
CGC 7.5 · 6 in census $62
CGC 7.0 none in existence
CGC 6.5 · 3 in census $42*
CGC 6.0 · 1 in census $40*
CGC 5.5 none in existence
CGC 5.0 · 2 in census $30*
CGC 4.5 · 1 in census $27*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

More listings for this title

MINT $2.79 NM $3.99 VF $4.98 VG+ $17.63 NM $24 NM $24 VG+ $35 CGC 7.5 $100
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Full credits

artist, inker, letterer Jim Aparo
cover pencils, inks Nick Cardy

Reprints

Reprinted in Démon #5 (1977), Aquaman #8 (1983), Aquaman: Deadly Waters The Deluxe Edition #[nn] (2020), Aquaman Classics #2525, Relatos Fabulosos #155, Top Comics Wassermann #118, Top Comics Wassermann #119

Key issues in Aquaman

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