Comic Title: Adventure Comics #189
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: June 1953
Approx. On Sale Date: April 24, 1953 Copyright Date April 22, 1953
Source: Library of Congress, Periodicals 1953
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: Monthly
Cover Price: $0.10
Page Count: 40
Editor: Jack Schiff

Title: "The Girl of Steel"
Pages: 12

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

Artist: John Sikela

Feature Character(s)

• Superboy (last appearance in Superboy #26; next appearance in Adventure Comics #190)

Supporting Character(s)

• Lana Lang (becomes Sky Girl; last appearance in Superboy #26; next appearance in Superboy #27)
• Jonathan Kent (last appearance in Superboy #26; next appearance in Adventure Comics #190)
• Martha Kent (last appearance in Superboy #26; next appearance in Adventure Comics #190)
• Lewis Lang (last appearance in Superboy #25; next appearance in Adventure Comics #192)
• Mrs. Lang (last appearance in Superboy #25; next appearance in Superboy #27)

Villain(s)

• An unnamed hold-up man (no further appearances)

Other Character(s)

• Several Smallville teenagers (Bob, Joan, and Betty named; no further appearances)

Synopsis:
Lana's father finds an alien belt while on an archaeological expedition. When Lana puts on the belt she gains super powers including flight, super strength and invulnerability. Lana puts on a costume and lead mask to become Sky Girl. She keeps her identity secret from everyone including Superboy.

Sky Girl begins handling emergencies just as Superboy does. Superboy respects her desire to maintain a secret identity, so he doesn't pry. However, when he discovers that Sky Girl's invulnerability only protects her from metals, he tries to convince her to retire. He discovers her secret identity, then convinces her father to let him destroy the alien belt.