Comic Title: Adventure Comics #385
Publisher: DC (National Periodical Publications, Inc.)
Address: 909 Third Avenue, New York, NY
Cover Date: October 1969
On Sale Date: August 28, 1969 Copyright Date August 28, 1969
Source: Library of Congress, Periodicals 1969

Frequency: Monthly
Cover Price: $0.15
Page Count: 32
Editor: Mort Weisinger

Title: "Supergirl's Big Sister"
Pages: 9

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

Writer: Cary Bates
Artist: Kurt Schaffenberger

Feature Character(s)

• Supergirl (last appearance in Adventure Comics #384; next appearance in Adventure Comics #385)

Villain(s)

• Carol Benton (aka Kranna; no further appearances)

Cameo Appearance(s)

• Zor-El (in Kranna's fictitious story)
• Allura (in Kranna's fictitious story)
• Several interstellar pirates (in Kranna's fictitious story)
• Fel-Ix (the son of a pirate; in Kranna's fictitious story)

Synopsis:
Supergirl prevents a collision between a rocket from Earth and a rocket ship from space. From inside the space rocket emerges Kranna, a woman who claims to be Supergirl's Kryptonian sister. She displays feats of strength and explains that she had super powers even on Krypton. When she was five, space pirates kidnapped her and erased the memory of her existance from the minds of Zor-El and Allura.

Supergirl doesn't believe her story at first, but after multiple demonstrations of Kranna's powers, the Girl of Steel is convinced. She then performs a feat of her own by creating diamonds from coal. Then Supergirl is called away by Superman.

After the Girl of Steel leaves, Kranna gloats. She is really an Earth woman, Carol Benton. She used science and trickery to fake her super powers. With the hoax she convinced Supergirl to create a fortune in diamonds. However, Supergirl returns. She explains that she faked Superman's call for assistance to allow Benton to reveal her true intentions. Supergirl destroys the diamonds, and explains that she knew Kranna was a fake because she could not fly.