| Issue | #21 |
| Published | March 1967 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Bill Harris |
| Notes | Cover by Sy Barry was especially drawn for this series. Credits from Alberto Becattini, added March 2007. |
| Pencils | Sy Barry |
| Inks | Sy Barry |
| Notes | Cover by Sy Barry was especially drawn for this series. Credits from Alberto Becattini, added March 2007. |
| Reprinted | in King Reading Library (King, 1973 series) #R-06 [modified] |
| Script | Bill Harris |
| Pencils | Bill Lignante(s) |
| Inks | Bill Lignante(s) |
| Letters | Ray Holloway |
| Letters | typeset |
| Script | Bill Harris |
| Pencils | Bill Lignante(s) |
| Inks | Bill Lignante(s) |
| Letters | Ray Holloway |
| Reprinted | in King Reading Library (King, 1973 series) #R-06 |
| Genre | adventure |
| Pencils | Bill Ziegler ? |
| Inks | Bill Ziegler ? |
| Notes | Credits from Alberto Becattini, added March 2007. Previously credited to André LeBlanc. |