Comic Title: World's Finest Comics #137
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: November 1963
On Sale Date: September 12, 1963 Copyright Date September 12, 1963
Source: Library of Congress, Periodicals 1963

Newsstand Date September 12, 1963
Source: Newsdealer Magazine, V18 #8

Frequency: Monthly, with the exception of Jan., April, July and Oct.
Cover Price: $0.12
Page Count: 32
Editor: Jack Schiff

Title: "Superman's Secret Master"
Pages: 16

Feature(s):
Superman (of Earth-1)
Batman (of Earth-1)

Writer: Bill Finger
Artist: Jim Mooney

Reprinted In:
World's Finest Comics #224 (1974)
Showcase Presents:World's Finest Vol. 2 TPB (2008)
Batman & Superman in World's Finest Comics:The Silver Age Omnibus Vol. 2 HC (2019)

Feature Character(s)

• Superman (last appearance in Action Comics #305; next appearance in Justice League of America #23)
• Batman (last appearance in Batman #159; next appearance in Justice League of America #23)

Supporting Character(s)

• Robin (last appearance in Batman #159; next appearance in Detective Comics #321)
• Lois Lane (last appearance in Superman's Girl Friend, Lois Lane #44; next appearance in Superman #165)
• Perry White (last appearance in Action Comics #305; next appearance in Superman #165)

Villain(s)

• Lex Luthor (last appearance in Superman #164; next appearance in Superman's Pal, Jimmy Olsen #74)
• Two unnamed aliens and a Superman robot (no further appearances)

Other Character(s)

• Citizens and the mayor of Metropolis (no further appearances)

Synopsis:
Aliens visit Earth and request Superman’s assistance in making a planet hospitable for colonization. While Superman is away, Luthor uses a Superman robot to make people believe that the Man of Steel is under the influence of an alien gas. People lose faith in Superman, and when the real Man of Steel returns, he is shunned. Batman and Robin have located Luthor and deduced his scheme. Superman finds them too and together they capture Luthor and clear Superman’s name.