| Issue | #21 |
| Published | November 1980 |
| Cover Price | 0.50 USD |
| Pages | 36 |
| Editing | Jim Shooter; Louise Jones |
| Notes | Letters page replies by Steven Grant. |
| Genre | science fiction |
| Pencils | Brent Anderson |
| Inks | Klaus Janson |
| Letters | typeset |
| Genre | science fiction |
| Script | Steven Grant; Walt Simonson (assist) |
| Pencils | Brent Anderson |
| Inks | Klaus Janson |
| Colors | Alex Miller |
| Letters | Michael Higgins? (pages 1, 26-31); John Costanza (pages 2-25); various (touch-ups) |
| Notes | Lettering credits 2005 by Steven Tice. |