Comic Title: Superman #40
Publisher: DC (Superman, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: May/Jun 1946
Approx. On Sale Date: March 1, 1946 Copyright Date February 26, 1946
Source: Library of Congress, Periodicals 1946-1947
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: Bi-monthly
Cover Price: $0.10
Page Count: 48
Editor: Jack Schiff

Title: "The Mxyztplk-Susie Alliance"
Pages: 12

Feature(s):
Superman (of Earth-2)

Writer: Don Cameron
Penciller: Ira Yarbrough
Inker: Stan Kaye

Reprinted In:
Limited Collectors' Edition C-38 (1975)
Superman in the Forties TPB (2005)
Superman:The Golden Age Omnibus Vol. 5 HC (2018)

Feature Character(s)

• Superman (last appearance in Action Comics #95; next appearance in Superman #40)

Supporting Character(s)

• Lois Lane (last appearance in Action Comics #95; next appearance in Superman #40)
• Susie Tompkins (last appearance in Action Comics #68; next appearance in Action Comics #98)

Villain(s)

• Mr. Mxyztplk (last appearance in Superman #36; next appearance in Action Comics #102)

Synopsis:
Mxyztplk returns from the land of Zrfff to prank Clark and Lois. Susie sees Mxyztplk's pranks and tells Lois, but she thinks Susie is lying. Susie is upset that Lois has punished her, so when Mxyztplk appears before her, they form an alliance to make Susie's fibs come true.

Superman realizes that Susie is working with the imp, so he dreams up a scheme to trick Mxyztplk. He makes the imp doubt his eyesight by temporarily recreating part of Zrfff in Metropolis. When Mxyztplk claims his eyesight is fine, Superman makes him read some billboards, one of which contains his name backwards. Mxyztplk is then forced to return to Zrfff.