| Issue | #78 |
| Published | February 1973 |
| Cover Price | 0.20 |
| Pages | 36 |
| Editing | E. Nelson Bridwell |
| Notes | Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories. Kirby inking credit from index of original issue. |
| Genre | adventure |
| Pencils | Jack Kirby |
| Inks | Jack Kirby |
| Notes | Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories. Kirby inking credit from index of original issue. |
| Reprinted | from Challengers of the Unknown (DC, 1958 series) #7 |
| Genre | adventure |
| Script | Jack Kirby, Ed France Herron |
| Pencils | Jack Kirby |
| Inks | Wally Wood |
| Notes | issues 78-80 are all reprints Information on original appearance for the GCD by Thomas Kniep |
| Reprinted | from Challengers of the Unknown (DC, 1958 series) #7 |
| Genre | adventure |
| Script | Jack Kirby; Ed France Herron |
| Pencils | Jack Kirby |
| Inks | Wally Wood |
| Reprinted | from Challengers of the Unknown (DC, 1958 series) #6 |