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Issue: Showcase #11
Publication Date: November 1957
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Disclose Detail
Issues: #11 of 104 Issues (108 Printings)
Title:
Variant: unnamed
Rating: Approved by the Comics Code Authority
Publisher: FlagDC
Brand: Superman DC National ComicsView Brand Images3
Indicia Publisher: National Comics Publications Inc.
On Sale Date: 09/15/1957
Volume: none
Pages: 36
ISBN: none
UPC/EAN: none
Price: $0.10 USD
Indicia Frequency: Approved by the Comics Code Authority
Content Items: 15 (8 stories, 1 cover)
Editor(s):  
Disclose Notes: Third appearance of the Challengers of the Unknown.

On-sale date from copyright registration.
  Does this data need corrections? Become an editor.
Disclose Format
Publication Type: Comic Book
Color: color
Dimensions: standard Silver Age US; standard Modern Age US
Paper Stock: glossy cover; newsprint interior
Binding: saddle-stitched
Publishing Format: was ongoing series
Format Notes:  
Disclose Reprinted In33
Disclose Reprinted From0
There is currently no data for this Issue being reprinted from anywhere.
Disclose Images2
Cover, Front
Original Artwork
Digital Edition
Adult Image
Title Page
Indicia on this Page
 
 
Cover, Front
Original Artwork
Digital Edition
Adult Image
Title Page
Indicia on this Page
 
 
Assets1
Indicia
 
 
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Disclose Content Items (15 total)
Disclose Issue Images
The Day the Earth Blew Up!

Illustration  on  Cover, Front
Credits
Writer(s): ?
Colorist(s): ?
Subject Matter
Genres: adventure
Character(s): unnamed Tyran
First Line: Our preparations are almost complete--and in exactly one hour, this is what will happen to your planet!
Reprinting
In Content Item: FlagThe Essential Showcase 1956-1959 #[nn] published February 1992
as [untitled] [Cover Reprint (on Interior Page) on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as [Cover - Showcase #11]; The Day the Earth Blew Up! [Cover Reprint (on Interior Page) on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as Backcover [Promotional Material (from Publisher) on Interior Page(s)]cover
In Content Item: FlagShowcase Presents Challengers of the Unknown #1 published December 2006
as Showcase #11 [Cover Reprint (on Interior Page) on Interior Page(s)]
In Content Item: FlagShowcase Presents: Showcase #1 published September 2012
as Showcase #11 [Cover Reprint (on Interior Page) on Interior Page(s)]
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose
Teddy Roosevelt: Guardian of Nature

Public Service Announcement  on  Interior Page(s)
Subject Matter
Genres: non-fiction, opinion
Character(s): Theodore Roosevelt
First Line: All nature is in delicate balance--bacteria and plants, insects and birds and animals depending on...
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose Notes: Inside front cover.
Disclose
The Day the Earth Blew Up [Chapter 1]

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Subject Matter
Genres: adventure
Character(s): Commander Lockwood; Colonel Price; unnamed Tyrans (villains)
First Line: Is man the only intelligent being in the universe?
Synopsis: At the Pentagon, Navy officers and scientists are stumped. Two scientists mysteriously disappeared in Antarctica. They call in "men capable of handling the unknown." Ace, Rocky, and Red fly off, picking up Prof along the way. Off New Guinea, Prof is astounded to find a volcano rising from the sea bed. In the Antarctic, the Challengers snow-tractor toward the mystery spot. The tractor bogs in a snowstorm and needs repairs. Ace and Rocky explore and fall through thin ice! They land on a futuristic bridge. Above, Prof and Red are captured by skinny orange aliens in bubble-suits.
Reprinting
In Content Item: FlagMighty The 100-Page Comic! #3 published January 1958
as The Day the Earth Blew Up [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown #80 published June 1973
as The Day The Earth Blew Up [Story on Interior Page(s)]
In Content Item: FlagSuper Héros #9 published January 1981
as Le jour où la Terre explosa [Story on Interior Page(s)]
In Content Item: FlagThe Essential Showcase 1956-1959 #[nn] published February 1992
as The Day the Earth Blew Up [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as The Day the Earth Blew Up [Chapter 1] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents Challengers of the Unknown #1 published December 2006
as The Day the Earth Blew Up [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents: Showcase #1 published September 2012
as The Day the Earth Blew Up [Chapter One] [Story on Interior Page(s)]
Reprint Notes:  
Miscellaneous
Pages: 7
Disclose Notes: Possible Stein inks per Mark Evanier and Nick Caputo. Although Stein had conversations with Greg Theakston denying he inked any Challengers stories it's possible Stein forgot he worked on them. Previous indexer credited Bruno Premiani. Possible Wood script and Kirby revisions per Mark Evanier and Nick Caputo.
Disclose
[untitled]

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Letterer(s): ?
Subject Matter
Genres: humorous
First Line: Here is the famous tomb of Tut-Ankah!
Synopsis: Moolah's companion spends the night in an Egyptian tomb.
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 2
Disclose
Chapter Two: The Tyrans

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Subject Matter
Genres: adventure
Character(s): Dr. Carl Jackson; Dr. Warren Moss; Garnat (villain); General Tolek (villain); unnamed Tyrans (villains)
First Line: Go down, down, down for an endless drop into the depths of the Earth--where the doors of the...
Synopsis: Two captured Challengers are dropped down a miles-deep airlift. Ace and Rocky find an airshaft and search for miles. They reach a underground city of aliens with an army preparing for invasion. Ace tries to capture a sentry, but the alien anticipates his every move with its computer-like mind. All four Challs are imprisoned with the missing scientists. The aliens are planting charges all over the world to blow away chunks and reduce Earth's mass intending to enslave the human race. Prof realizes the undersea volcano was a test. The Challengers plan to attack when the aliens are at rest.
Reprinting
In Issue: FlagThe Essential Showcase 1956-1959 #[nn] published February 1992
In Content Item: FlagMighty The 100-Page Comic! #3 published January 1958
as The Tyrans: Chapter Two [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown #80 published June 1973
as Chapter Two: The Tyrans [Story on Interior Page(s)]
In Content Item: FlagSuper Héros #9 published January 1981
as Le jour où la Terre explosa [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as The Tyrans [Chapter 2] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents Challengers of the Unknown #1 published December 2006
as The Tyrans [Chapter Two] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents: Showcase #1 published September 2012
as Chapter Two The Tyrans [Story on Interior Page(s)]
Reprint Notes:  
Miscellaneous
Pages: 6
Disclose Notes: Possible Stein inks per Mark Evanier and Nick Caputo. Although Stein had conversations with Greg Theakston denying he inked any Challengers stories it's possible Stein forgot he worked on them. Previous indexer credited Bruno Premiani. Possible Wood script and Kirby revisions per Mark Evanier and Nick Caputo.
Disclose
[untitled]

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Letterer(s): ?
Subject Matter
Genres: humorous
First Line: That's nice!
Synopsis: A dog and a monkey assault Shorty during "Be Kind to Animals" week.
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 0.5
Disclose
[untitled]

Advertisement  on  Interior Page(s)
Credits
Writer(s): ?
Penciller(s): ?
Inker(s): ?
Colorist(s): ?
Letterer(s): ?
Subject Matter
First Line: Be my guest at Palisades Amusement Park, New Jersey.
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 0.5
Disclose
[untitled]

Promotional Material (from Publisher)  on  Interior Page(s)
Credits
Writer(s): ?
Penciller(s): ?
Inker(s): ?
Colorist(s): ?
Letterer(s): ?
Subject Matter
First Line: The oldest symbol in comics...
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose
Chapter Three: The Thing That Came Out of the Sea

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Subject Matter
Genres: adventure
Character(s): Dr. Carl Jackson; Dr. Warren Moss; Garnat (villain); Tyran Commander (villain); unnamed Tyrans (villains)
First Line: How much time has mankind left--before it is blasted into chaos by hidden invaders?
Synopsis: The Challengers hypnotize an alien who leads them to a gravity control room. The team crank the gravity high, pinning the aliens to the ground. Ace and Rocky try to destroy the main detonator. Prof and Red teleport to Washington and alert the military who bring their forces to the battle. Prof is given a wearable minisub and attempts to dismantle the bomb. Underground Ace, Rocky and the two scientists flee a gas attack and gun-cars. Cranking a valve brings raging heat that crisps aliens and slags the bomb detonator. In the Pacific, a claw-machine erupts from the ocean to attack the Navy.
Reprinting
In Issue: FlagThe Essential Showcase 1956-1959 #[nn] published February 1992
In Content Item: FlagMighty The 100-Page Comic! #3 published January 1958
as The Thing That Came Out of the Sea: Chapter Three [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown #80 published June 1973
as Chapter Three: The Thing That Came Out of the Sea [Story on Interior Page(s)]
In Content Item: FlagSuper Héros #9 published January 1981
as Le jour où la Terre explosa [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as The Thing That Came Out of the Sea [Chapter 3] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents Challengers of the Unknown #1 published December 2006
as The Thing That Came Out of the Sea [Chapter Three] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents: Showcase #1 published September 2012
as Chapter Three The Thing That Came Out of the Sea [Story on Interior Page(s)]
Reprint Notes:  
Miscellaneous
Pages: 6
Disclose Notes: Possible Stein inks per Mark Evanier and Nick Caputo. Although Stein had conversations with Greg Theakston denying he inked any Challengers stories it's possible Stein forgot he worked on them. Previous indexer credited Bruno Premiani. Possible Wood script and Kirby revisions per Mark Evanier and Nick Caputo.
Disclose
The Man from Nowhere

Text Story  on  Interior Page(s)
Credits
Writer(s): ?
Letterer(s): typeset
Subject Matter
Genres: science fiction
First Line: I make it a policy never to pick up hitchhikers.
Synopsis: A driver picks up a hitchhiker and becomes afraid of him; only later does the driver realize that the hitchhiker saved his life three times.
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose
Time-Traveling into the Past and the Future!

Story  on  Interior Page(s)
Credits
Writer(s): ?
Colorist(s): ?
Letterer(s): ?
Subject Matter
Character(s): Julius Caesar; John Anderson
First Line: If a man can invent a telescope powerful enough to pick up light rays that have receded away from...
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 2
Disclose
Chapter Four: One Minute to Doom

Story  on  Interior Page(s)
Credits
Colorist(s): ?
Subject Matter
Genres: adventure
Character(s): Dr. Carl Jackson; Dr. Warren Moss; Garnat (villain); General Tolek (villain); unnamed Tyrans (villains)
First Line: The chips are down!
Synopsis: On the Pacific island, Red sprays a new secret chemical weapon, a corrosive gas that eats the machine. Soon Ace leads a fleet of bombers to pound what's left of the alien base, and the menace is over. Their only casualty is Prof, who caught a cold diving off the South Pole!
Reprinting
In Issue: FlagThe Essential Showcase 1956-1959 #[nn] published February 1992
In Content Item: FlagMighty The 100-Page Comic! #3 published January 1958
as One Minute To Doom: Chapter Four [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown #80 published June 1973
as Chapter Four: One Minute to Doom [Story on Interior Page(s)]
In Content Item: FlagSuper Héros #9 published January 1981
as Le jour où la Terre explosa [Story on Interior Page(s)]
In Content Item: FlagChallengers of the Unknown Archives #1 [First Printing] published September 2003
as One Minute to Doom [Chapter 4] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents Challengers of the Unknown #1 published December 2006
as One Minute to Doom [Chapter Four] [Story on Interior Page(s)]
In Content Item: FlagShowcase Presents: Showcase #1 published September 2012
as Chapter Four One Minute to Doom [Story on Interior Page(s)]
Reprint Notes:  
Miscellaneous
Pages: 5
Disclose Notes: Possible Stein inks per Mark Evanier and Nick Caputo. Although Stein had conversations with Greg Theakston denying he inked any Challengers stories it's possible Stein forgot he worked on them. Previous indexer credited Bruno Premiani. Possible Wood script and Kirby revisions per Mark Evanier and Nick Caputo.
Disclose
[untitled]

Advertisement  on  Interior Page(s)
Credits
Writer(s): ?
Penciller(s): ?
Inker(s): ?
Colorist(s): ?
Letterer(s): typeset
Subject Matter
Feature(s): American Specialty Co.
Character(s): Wyatt Earp
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose Notes: Earn prizes by selling Christmas cards.
Disclose
[untitled]

Advertisement  on  Interior Page(s)
Credits
Writer(s): ?
Penciller(s): ?
Inker(s): ?
Letterer(s): ?
Subject Matter
Feature(s): Stephens Credit Sales
First Line: Do you want spending money?
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose Notes: Inside back cover. Ad to earn money by selling patriotic and religious mottoes.
Disclose
[untitled]

Advertisement  on  Interior Page(s)
Credits
Writer(s): ?
Penciller(s): ?
Inker(s): ?
Colorist(s): ?
Letterer(s): typeset
Subject Matter
Feature(s): Garcelon Stamp Co.
Reprinting
Reprint Notes:  
Miscellaneous
Pages: 1
Disclose Notes: Back cover.

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