Comic Title: Adventure Comics #242
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: November 1957
Approx. On Sale Date: September 26, 1957 Copyright Date September 24, 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: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "The Kid from Krypton"
Pages: 12

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

Writer: Otto Binder
Penciller: Curt Swan
Inker: Stan Kaye

Reprinted In:
Superboy #129 (1966)

Feature Character(s)

• Superboy (last appearance in Adventure Comics #241; next appearance in Superboy #61)

Supporting Character(s)

• Jonathan Kent (last appearance in Adventure Comics #241; next appearance in Superboy #61)
• Martha Kent (last appearance in Superboy #60; next appearance in Superboy #61)
• Lana Lang (last appearance in Adventure Comics #241; next appearance in Superboy #61)

Villain(s)

• Several unnamed crooks (no further appearances)

Other Character(s)

• Krypton Kid and Zol-Zu (Zar-Al and his father; both die in this story; no further appearances)
• An unnamed scientist and various Smallville citizens (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:
Superboy meets Zar-Al, a boy from Krypton who has traveled to Earth in a time machine to seek the element Zeelium which he believes will help prevent Krypton’s destruction. Zar-Al assumes the identity of the Krypton Kid and becomes Superboy’s partner. The Kid proves even more ingenious than Superboy in crime-fighting tactics and super-deeds.

Superboy decides that he should return to Krypton with the Zeelium in case it should fail. In doing so, Zar-Al would remain on Earth as its greatest champion. Zar tricks Superboy however and returns as planned in his time machine, explaining that Kryptonite would have a stronger effect on him than Superboy who has built up an immunity to it. Zar never did find any Zeelium, so he perishes in the destruction of Krypton.