Comic Title: World's Finest Comics #90
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Sep/Oct 1957
Approx. On Sale Date: July 23, 1957 Copyright Date July 21, 1957
Source: Library of Congress, Periodicals 1957
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Super-Batwoman"
Pages: 12

Feature(s):
Superman (of Earth-1)
Batman (of Earth-1)

Writer: Edmond Hamilton
Penciller: Dick Sprang
Inker: Stan Kaye

Reprinted In:
World's Finest Comics #161 (1966)
World's Finest Comics Archives Vol. 2 HC (2002)
Showcase Presents:World's Finest Vol. 1 TPB (2007)
Batman & Superman in World's Finest Comics:The Silver Age Omnibus Vol. 1 HC (2016)
Batman & Superman in World's Finest Comics:The Silver Age Vol. 1 TPB (2017)

Feature Character(s)

• Superman (last appearance in Action Comics #232; next appearance in Superman's Pal Jimmy Olsen #24)
• Batman (last appearance in Detective Comics #247; next appearance in Batman #111)

Guest Star(s)

• Batwoman (last appearance in Batman #105; next appearance in Detective Comics #249)

Supporting Character(s)

• Robin (last appearance in Detective Comics #247; next appearance in Batman #111)
• Lois Lane (last appearance in Superman #116; next appearance in Superman's Pal Jimmy Olsen #24)
• Perry White (last appearance in Superman #116; next appearance in Superman's Pal Jimmy Olsen #24)

Villain(s)

• Elton Craig (last appearance in World's Finest Comics #87; no further appearances)

Other Character(s)

• John Martin and his son (no further appearances)

Cameo Appearance(s)

• Jor-El (in flashback to the third story of More Fun Comics #101)
• Lara (in flashback to the third story of More Fun Comics #101)

Synopsis:
Elton Craig escapes jail, pursued by Superman and the Dynamic Duo. The heroes suspect that Craig has hidden the one remaining super-power pill, and he intends to use it. Batwoman also shows up to pursue the fugitive, but Batman sends her away.

Batwoman however is the first to find Craig. He is about to take the pill, but Batwoman takes it away from him and uses it herself. After Craig is recaptured, Batman warns Batwoman to go home as her powers are dangerous. This angers Kathy, so she vows to use her powers to uncover the secret identities of Superman and Batman.

She trails the Caped Crusaders around town until they finally give her the slip. Undetered, Kathy uses her X-ray vision to locate the Batcave and learn about the owners of the mansion above. She then sets out to find out Superman’s identity.

Despite her best efforts, Batwoman can not learn Superman’s secret. Batman’s quick thinking, disguising himself as Clark Kent, prevents such a discovery. When her powers wear off, she is disappointed about not learning Superman’s secret. Batman also reveals that the Batcave she discovered was a fake created by Superman to fool her. Kathy is left without knowing either secret, but Batman promises to be more receptive to her help in the future.