Published
January 1953
Pages
44
SUPERMAN'S BIG BROTHER Halk Kar came from the planet Thoron, which is in the same solar system as Krypton. He visited the world of Krypton some years before its destruction and met Kryptonian scientist Jor-L. THE BIG NOISE OF METROPOLIS! THE MEN OF FIRE
Key Facts
- 1st appearance of Halk Kar, a prototype of the character who would be introduced as Mon-El in Superboy #89
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