Comic Title: Action Comics #272
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: January 1961
On Sale Date: November 29, 1960 Copyright Date November 29, 1960
Source: Library of Congress, Periodicals 1960

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "The Second Supergirl"
Pages: 13

Feature(s):
Supergirl (of Earth-1)

Writer: Otto Binder
Artist: Jim Mooney

Reprinted In:
Supergirl Archives Vol. 2 HC (2004)
Showcase Presents:Supergirl Vol. 1 TPB (2008)
Supergirl:The Silver Age Omnibus Vol. 1 HC (2016)
Supergirl:The Silver Age Vol. 1 TPB (2017)

Feature Character(s)

• Supergirl (last appearance in Superman's Pal, Jimmy Olsen #50; next appearance in Action Comics #273)

Supporting Character(s)

• Superman (last appearance in Action Comics #272; next appearance in Action Comics #273)

Other Character(s)

• Marvel Maid and Marvel Man (parallels of Supergirl and Superman from the planet Terra; next appearance in Action Comics #273)
• Citizens of Terra and a kitchen lady from Midvale Orphanage (no further appearances)

Comments:
This story continues in the second story of Action Comics #273.

Synopsis:
Supergirl locates a planet, Terra, which is a duplicate of Earth with only minor differences. As she investigates this planet, she meets Marvel Maid, who is a parallel of Superman. She also meets Marvel Man who operates secretly just like Supergirl. Supergirl tries to assist Marvel Man, but inadvertantly makes a diamond which acts like Kryptonite to Marvel Man. As a result Marvel Maid’s Fortress of Marvels is destroyed.