Notes:
On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 23, Part 2, Periodicals, January-December 1969. Class B periodical. Copyright registration number B505653.
Character(s):
Superman [Clark Kent]; Mr. Mxyzptlk; Jor-El (statue, cameo); Lara (statue, cameo); Jimmy Olsen (robot)
Synopsis:
After yet another round of pranks from Mr. Mxyzptlk, Superman travels to the fifth dimensional world where Mxyzptlk lives to perform pranks on him.