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Detective Comics #7 cover
Cover: Creig Flessel

Detective Comics #7

Sep 1937 · DC · 0.10 USD
📊 ~89,891 copies sold its debut month
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"In Atlantic City" sees Slam, Shorty, and Slim racing to a mysterious telegram that leads them to a seaside mystery in 1937. Disguised as lifeguards, they plunge into danger when a woman claims to have been attacked by non-human arms—only to uncover a surprising truth beneath the waves. Written by Jerome Siegel and illustrated by Joe Shuster, this early adventure features the dynamic art of the duo and a cover by Creig Flessel.

Contains 9 stories
In Atlantic City
13 pp · Detective-Mystery
The "Undersea Killer"Ethel Mann

In "In Atlantic City," Slam answers a cryptic telegram and arrives in the seaside town to find the sender dead—drowned under mysterious circumstances. Disguised as lifeguards, he and his partner Shorty investigate, rescuing swimmer Ethel Mann from the surf only to hear her claim she was seized by non-human arms. When Shorty is dragged under by an unseen force, Slam rushes in to save him—only to uncover the truth behind the terror: a man in a diving suit, not a monster.

The Premonition of Emil Rogello
6 pp · Detective-Mystery
Emilio RogelloLeon PetrokoffLuigi

In "The Premonition of Emil Rogello," Cosmo answers a frantic call from his friend Emilio, who claims to have foreseen a deadly threat—only to find him dead upon arrival. Disguising himself as Emilio, Cosmo narrowly evades a knife attack, using the killer’s reflection to anticipate the strike. The truth behind the murder lies in a sinister return from an asylum, and Cosmo must unravel the mystery before another life is lost.

The Claws of the Red Dragon
12 pp · Detective-Mystery
Chin LungLu GongStucchiSigrid von HoltzendorfErick von Holtzendorf (Sigrid's father)
The Mystery Play
4 pp · Humor, Detective-Mystery
Mrs. Julia GottbucksMr. Rainhard
The Colossus Disaster
4 pp · Adventure, Detective-Mystery
Hanson
A Report -- in Detail
6 pp · Adventure, Western-Frontier
Ben ElinJim HoltThe Sheriff
Mystery of the Wholesale Kidnappings, Part 3
6 pp · Detective-Mystery
SquintyDutchMrs. Steele (Larry's mother)
At the Rodeo
6 pp · Detective-Mystery
Tex Dallasan unnamed gunman

In "At the Rodeo," a deadly ambush at a rodeo sends shockwaves through the crowd—first a champion rider is shot mid-ride, then Speed, watching from the stands, narrowly escapes a similar fate when he’s thrown clear just before the shot. With danger lurking in plain sight, Speed must untangle a web of resentment and sabotage among the rodeo’s performers, where a disgraced rider’s grudge may be the key to a violent plot.

Untitled Humor story
1 pp · Humor

ComicBooks.com Value

Our Model is In Beta
Raw (Good) $769
CGC 7.5 · 2 in census $6,238
CGC 7.0 none in existence
CGC 6.5 · 2 in census $3,078
CGC 6.0 · 2 in census $2,663*
CGC 5.5 · 3 in census $2,238*
CGC 5.0 none in existence
Show all 15 grades
CGC 4.5 none in existence
CGC 4.0 · 1 in census $2,009*
CGC 3.5 · 1 in census $2,009
CGC 3.0 · 1 in census $1,245*
CGC 2.5 none in existence
CGC 2.0 none in existence
CGC 1.5 · 1 in census $659*
CGC 1.0 none in existence
CGC 0.5 · 2 in census $456
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Cast · 10 characters

Full credits

artist, inker Joe Shuster
cover pencils, inks Creig Flessel

Key issues in Detective Comics

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