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 Unofficial Detective Comics Index

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DETECTIVE COMICS #229

Cover Date: March 1956
Cover Price: $0.10
Publication Date: 1956-01-24

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Cover Credits:
Art: Win Mortimer


Story: "The 10,000 Secrets of Batman!" (12 Pages)

Credits:

PencilsDick Sprang (as Bob Kane)
InksCharles Paris
EditingJack Schiff

Feature Character(s):

Batman

Supporting Character(s):

Robin
Commissioner Gordon

Villain(s):

Mart Mathers (first appearance; poses as a TV technician and steals Batman's Microfilm files)
John Creeden and his gang (first appearance for all; hires Mathers to retrieve the microfilm)

Location(s):

Gotham City
Wayne Manor
Batcave

Comment(s):

Batman has a computer/punch-card reader in the Batcave.

Story Reprinted in:

Batman Annual #1 (1961)
Giant Batman Annual #1 Replica Edition (1999)
DC Comics Classics Library: The Batman Annuals #1 (2009)


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Second Story: "The Diamond Mine on Broadway" (6 Pages)

Credits:

ArtRuben Moreita
EditingJack Schiff

Feature Character(s):

Roy Raymond

Supporting Character(s):

Karen

Villain(s):

Joshua Madden (first appearance; tries to pull a diamond scam)


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Third Story: "The Phantom Bodyguard" (6 Pages)

Credits:

StoryDave Wood
ArtJoe Certa
LetteringPat Gordon
EditingJack Schiff

Feature Character(s):

Martian Manhunter

Supporting Character(s):

Captain Harding

Villain(s):

Drexel Mansfield (first appearance; tries to frame his business partner in murder attempts on himself)

Story Reprinted in:

Showcase Presents: Martian Manhunter #1 (2007)


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