Mongul the Elder appears in 6 issues in this volume.
The Key That Unlocked Chaos!/Whatever Happened to Congorilla?
November 1, 1980
Warworld!/Whatever Happened to Johnny Thunder?
December 1, 1980
Where No Superman Has Gone Before!/Whatever Happened to Dr. Mid-nite?
Whatever Happened to Starman?
August 1, 1981
In Final Battle!
March 1, 1982
The Big Kill!
July 1, 1986
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