Comic Title: Adventure Comics #250
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: July 1958
On Sale Date: May 29, 1958 Copyright Date May 29, 1958
Source: Library of Congress, Periodicals 1958

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

Title: "The Imposter from the Year 2958"
Pages: 12

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

Writer: Bill Finger
Artist: John Sikela

Reprinted In:
80 Page Giant Magazine #10 (1965)

Feature Character(s)

• Superboy (last appearance in Superboy #66; next appearance in Adventure Comics #251)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #66; next appearance in Adventure Comics #251)
• Martha Kent (last appearance in Superboy #66; next appearance in Adventure Comics #251)
• Lana Lang (last appearance in Superboy #66; next appearance in Superboy #67)
• Lewis Lang (last appearance in Superboy #66; next appearance in Superboy #67)

Villain(s)

• Lorac-K7 (no further appearances)

Other Character(s)

• Edaw-8 (a future lawman; no further appearances)
• Principal H.M. Sands and Mayor Brook (no further appearances)

Synopsis:
Clark Kent is notified by authorities in the future, that a criminal, Lorac-K7 has escapes to the past to steal cobalt. Lorac knows Superboy’s identity and is disguised as someone he knows.

Clark goes through the day, protecting Smallville’s cobalt supplies. Several theft attempts are made. Superboy suspects Professor Land, his principal, and even the mayor of being Lorac. Finally, Superboy realizes that Lorac is disguised as Lana Lang. He captures Lorac and sends her back to the future without any cobalt.