| Issue | #51 |
| Published | November 1947 |
| Cover Price | 0.10 |
| Pages | 52 |
| Editing | J. F. Byrne (Managing Editor) |
| Genre | science fiction |
| Pencils | Joe Doolin |
| Inks | Joe Doolin |
| Characters | Villain: X-Adapts (Introduction; Death); Voltamen (Death). Introduction: Dr. Allen; Prof. Raymond Huxley Dunn; Jane Dunn (Death); Robert |
| Genre | Science Fiction |
| Script | ? [as Thornecliffe Herrick] |
| Pencils | George Evans |
| Inks | Bob Lubbers? (pgs 1-4); George Evans (pgs 5-10) |
| Notes | The story title is taken from the cover blurb. |
| Reprinted | in Golden-Age Greats (AC, 1994 series) #12 |
| Characters | Introduction: The Keeper. Villains: Mentor; Cymradians |
| Genre | science fiction |
| Script | ? [as John Douglas] |
| Pencils | Walter Palais |
| Inks | Walter Palais |
| Notes | Not the same as the Venus episode in issue #34. |
| Characters | Guest Star: Dorna. Villain: Goz (Introduction) |
| Genre | science fiction |
| Script | ? [as Dick Charles] |
| Pencils | Joe Doolin |
| Inks | Joe Doolin |
| Characters | Villains: The Masked One; Veda; Barton (Introduction for all) |
| Genre | science fiction |
| Script | ? [as Hugh Fitzhugh] |
| Pencils | Frank Doyle |
| Inks | Frank Doyle |
| Genre | science fiction |
| Script | ? [as Thornecliffe Herrick] |
| Letters | typeset |
| Characters | Villains: Rawn; Brac; Lud (Introduction for all). Introduction: Dr. Jorge Nels; Zandra Nels |
| Genre | science fiction |
| Script | ? [as Len Dodson] |
| Pencils | Murphy Anderson (signed) |
| Inks | Murphy Anderson (signed) |
| Characters | Villain: Torg (Introduction). Guest Star: Bron II. Introduction: Colonel Sarku |
| Genre | science fiction |
| Script | ? [as Ross Gallun] |
| Pencils | Maurice Whitman (signed) |
| Inks | Maurice Whitman (signed) |