| Issue | #21 |
| Published | August 1953 |
| Frequency | monthly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | All information for this issue from Tom Lammers via the Timely-Atlas Group (timely-atlas@yahoogroups.com) April 2010. |
| Pencils | Carl Burgos |
| Inks | Carl Burgos |
| Letters | typeset |
| Pencils | Joe Sinnott |
| Inks | Joe Sinnott |
| Pencils | Chuck Winter |
| Inks | Chuck Winter |
| Letters | typeset |
| Reprinted | from Venus (Marvel, 1948 series) #21 (December 1951) [originally titled "The Madmen of Mogan"] |
| Pencils | Bob McCarthy |
| Inks | Bob McCarthy |
| Pencils | Don Rico |
| Inks | Don Rico |
| Pencils | Mike Sekowsky |
| Inks | Matt Fox |