| Issue | #21 |
| Published | May-June 1958 |
| Frequency | bi-monthly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Whitney Ellsworth; Jack Schiff (Associate Editor); Murray Boltinoff (Associate Editor); George Kashdan (Associate Editor) |
| Genre | science fiction |
| Pencils | Bob Brown |
| Inks | Bob Brown |
| Colors | Jack Adler |
| Genre | science fiction |
| Pencils | Jack Kirby |
| Inks | Jack Kirby |
| Characters | Doctor Rocket; Mrs. Rocket |
| Synopsis | Mrs. Rocket can't stand her friends' snobbiness about their butlers. |
| Genre | humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Genre | science fiction |
| Pencils | Bill Ely |
| Inks | Bill Ely |
| Reprinted | in Big Boy (Artima, 1956 series) #25 (October 1958) |
| Genre | science fiction |
| Letters | Typeset |
| Characters | Buzzy; Tommy; Margie; Susie |
| Synopsis | Margie learns that having a mental patient in the family is nothing to be ashamed of. |
| Genre | teen; humor |
| Script | Jack Schiff |
| Pencils | Win Mortimer |
| Inks | Win Mortimer |
| Characters | Jim; George |
| Genre | jungle; fact |
| Pencils | George Papp |
| Inks | George Papp |
| Reprinted | from Congo Bill (DC, 1954 series) #4 |
| Genre | science fiction |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Reprinted | in Big Boy (Artima, 1956 series) #26 (November 1958) |