| Issue | #1 |
| Published | 1951 |
| Frequency | [none listed] |
| Cover Price | 0.00 FREE |
| Pages | 20 |
| Editing | Raymond C. Krank ? |
| Notes | Date listed is copyright date. |
| Genre | Science Fiction |
| Pencils | Bob Powell (signed) |
| Inks | Bob Powell (signed) |
| Genre | science fiction |
| Script | Bob Powell ? |
| Pencils | Bob Powell (signed) |
| Inks | Bob Powell (signed) |
| Notes | Major Inapak (introduction); Roxtyl (villain, introduction) |
| Genre | fact |
| Script | Gardner Fox ? |
| Pencils | Bob Powell (signed) |
| Inks | Bob Powell (signed) |
| Notes | Inapak's lab features a cross-barred, circular window like that of The Spirit and Dr. Strange |