Comic Title: Superman #148
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: October 1961
On Sale Date: August 3, 1961 Newsstand Date August 3, 1961
Source: House Ad, Action Comics #280, Page 15

Copyright Date August 3, 1961
Source: Library of Congress, Periodicals 1961


Newsstand Date August 3, 1961
Source: Newsdealer Magazine, V16 #6

Frequency: Monthly, with the exception of March, June, Sept., and Dec.
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "Mr. Mxyzptlk's Super-Mischief"
Pages: 8

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

Writer: Jerry Siegel
Penciller: Curt Swan
Inker: Sheldon Moldoff

Reprinted In:
Showcase Presents Superman Vol. 3 TPB (2007)

Feature Character(s)

• Superman (last appearance in Superman #148; next appearance in Superman #148)

Supporting Character(s)

• Perry White (last appearance in Action Comics #280; next appearance in Superman's Girl Friend, Lois Lane #28)
• Van Zee (last appearance in Superman's Girl Friend, Lois Lane #27; next appearance in Superman #158)
• Superman Emergency Squad (last appearance in Action Comics #276; next appearance in Action Comics #291)

Villain(s)

• Mr. Mxyzptlk (last appearance in Adventure Comics #288; next appearance in Superman's Girl Friend, Lois Lane #29)

Other Character(s)

• A 5th dimensional judge, the Mayor of Metropolis, and several prison convicts (no further appearances)

Synopsis:
Mxyzptlk returns to Earth with a new legal name, John Trix, given to him by a 5th dimensional court. The imp begins tearing up Metropolis with his usual mischief, until confronted by Superman. The Man of Steel tricks Mxyzptlk into saying his name backwards, but this time he does not go away.

Puzzled, Superman tries again to get Mxyzptlk to say his name backward, until the imp tells him his name has been changed. Without knowing the imp’s current name, Superman cannot send him home.

Another Mxyzptlk arrives claiming the first one to be a phony. Believing it to be a robot sent by Superman, Mxyzptlk challenges the newcomer. When the new imp says Kltpzyxm, he disappears. Not to be outdone, the first Mxyzptlk says Xirt Nhoj returning him to the 5th dimension. With the imp gone, the fake Mxyzptlk returns and is revealed to be Van Zee and the Superman Emergency Squad animating a puppet. Back on his home world, Mxyzptlk fumes because he was tricked and his new name has legally expired, making it unusable in the future.