Comic Title: Action Comics #265
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: June 1960
On Sale Date: April 28, 1960 Newsstand Date April 28, 1960
Source: House Ad, Sugar and Spike #29, Page 31

Copyright Date April 28, 1960
Source: Library of Congress, Periodicals 1960

Newsstand Date April 28, 1960
Source: Newsdealer Magazine, V15 #2

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

Title: "The Day Supergirl Revealed Herself"
Pages: 13

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

Writer: Jerry Siegel
Artist: Jim Mooney

Reprinted In:
Supergirl Archives Vol. 1 HC (2001)
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 Action Comics #265; next appearance in Superman's Pal, Jimmy Olsen #46)

Guest Star(s)

• Superman (last appearance in Action Comics #265; next appearance in Brave and the Bold #30)

Villain(s)

• A gang of criminals (Max and Duke named; no further appearances)

Other Character(s)

• Mary Jane (a girl from the orphanage; no further appearances)
• Prof. Ralph and Ellen Evans and some Smallville citizens (no further appearances)

Synopsis:
Superman asks Supergirl to follow some crooks because he is unable to get away in his Clark Kent identity. Supergirl trails the bandits and leads Superman to them. On the way back to the orphanage, a scientist and his wife are blinded by a comet. Supergirl is also affected by the comet, which had red kryptonite particles in it.

Supergirl awakens from the encounter with the comet with a slight memory loss. She travels to Smallville where she meets the couple blinded by the comet, the Evans’. Forgetting her Linda Lee identity, Supergirl takes the name, Gloria Smith, and serves as their nurse.

During her stay in Smallville, Supergirl performs super deeds in front of the people. The people are happy that they have someone like Superboy around. The Evans’ recover from their blindness and learn that Supergirl was their nurse.

Superman uses his telescopic vision and sees that Supergirl is saving the town from a robot. He realizes what has happened, so he gets a container of Gas Z "Amnesia Gas". He sprays the town to make them forget about Supergirl’s existance. The effects of the kryptonite wear off, and Supergirl returns to Midvale having also forgotten the entire experience.