Challengers of the Unknown (Volume 1) with a cover date of April, 1973.
Synopsis for "The Monster Maker"
This story is reprinted from Challengers of the Unknown #2.
While answering the call from a prospector to get a strange creature out of his cave, the Challengers are interrupted from their task by June Robbins who warns them that her computer warned that their most recent mission would lead to their death. Undaunted, even with June's attempts to stop them, the Challengers lure the creature out of the cave. Once they lure it out far enough they find that away from it's natural habitat, the creature cannot survive and it quickly dies. The Challengers realize that if they went through with their original plan that was interrupted by June they would have died.
Appearing in "The Monster Maker"
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Synopsis for "The Human Pets"
This story is reprinted from Challengers of the Unknown #1.
A brief retelling of the Challenger's origins as originally depicted in Showcase #6.
Appearing in "The Human Pets"
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Notes
- The “Pen-Challs” letters column has a short biography of Jack Kirby.