Comic Title: Superboy #138
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May/Jun 1967
On Sale Date: March 14, 1967 Newsstand Date March 14, 1967
Source: House Ad, Adventures of Jerry Lewis #100, Page 12

Newsstand Date March 14, 1967
Source: Direct Currents, Batman #191, Page 32

Newsstand Date March 14, 1967
Source: Newsdealer Magazine, V22 #4

Copyright Date March 14, 1967
Source: Library of Congress, Periodicals 1967

Frequency: Monthly, with the exception of Feb., Aug., and Nov.
Cover Price: $0.25
Page Count: 80
Editor: Mort Weisinger

See Also: The Guide to DC Giants

Notes:
This issue is labeled 80 Page Giant #G-35.

Title: "Krypto's Arch-Enemy"
Pages: 13

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

Writer: Otto Binder
Artist: George Papp

Reprinted From:
Superboy #92 (1961)

Feature Character(s)

• Superboy (last appearance in Superboy #92; next appearance in Adventure Comics #289)

Supporting Character(s)

• Krypto (last appearance in Superboy #91; next appearance in Adventure Comics #290)
• Police Chief Parker (last appearance in Adventure Comics #288; next appearance in Adventure Comics #290)

Villain(s)

• Lex Luthor (last appearance in Superboy #91; next appearance in Adventure Comics #292)
• Destructo (Luthor’s dog; no further appearances)

Synopsis:
Luthor invents a machine to give himself super powers. However, his dog gets in the way and receives the powers instead. Luthor trains his dog to impersonate Krypto and cause trouble. The town soon becomes angry at Krypto, so when the real dog shows up he is shunned.

Krypto catches on to the scheme and leads the polce to Luthor’s house where they see what has really taken place. The two dogs do battle, but Luthor removes Krypto’s powers with his machine.

Without powers, Krypto uses Kryptonite against Destructo, forcing Luthor to return Krypto’s powers. When Superboy returns from a space mission, he uses the machine to remove Destructo’s powers, and turns Luthor in to the reformatory.