| Issue | #12 |
| Published | January-March 1962 |
| Frequency | quarterly |
| Cover Price | 0.15 USD |
| Pages | 36 |
| Characters | Mike Nelon [as portrayed by Lloyd Bridges] |
| Genre | adventure |
| Pencils | photo |
| Inks | phoo |
| Colors | photo |
| Letters | typeset |
| Synopsis | How sailors navigated before compasses and other navigational instruments were developed. |
| Genre | Fact |
| Letters | typeset |
| Notes | inside front cover |
| Characters | Mike Nelson; Vic (Mike's friend); Flavon (a dictator); Hermes (a young boy who helps Mike) |
| Synopsis | Mike helps a friend of his search for a dictator who has gone into hiding. |
| Genre | adventure |
| Pencils | Dan Spiegle |
| Inks | Dan Spiegle |
| Synopsis | Essay on sharks. |
| Genre | Fact |
| Letters | typeset |
| Synopsis | Ad for various items available from the Dell Trading Post. |
| Letters | ?; typeset |
| Notes | This ad also appears in the centerspread of most comics published with the same date as this issue. |
| Characters | Captain Amon Barlow; Amon Barlow (the captain's grandson) |
| Synopsis | A young boy tells his grandfather that he would rather fly airplanes instead of navigate ships. |
| Genre | adventure |
| Pencils | Dan Spiegle |
| Inks | Dan Spiegle |
| Characters | Mike Nelson; Lieutenant John Gaver; Glen Gregory |
| Synopsis | Mike and his friend encounter an underwater painter who is attacked by another diver. |
| Genre | adventure |
| Pencils | Dan Spiegle |
| Inks | Dan Spiegle |
| Synopsis | Short story about different treasure hunters. |
| Genre | Fact |
| Pencils | Russ Manning |
| Inks | Russ Manning |
| Letters | typeset |
| Notes | Dell Pledge to Parents is the last panel on this page. |
| Synopsis | Life cycle of the grunion. |
| Genre | Fact |
| Letters | typeset |
| Notes | inside back cover |
| Synopsis | Ad for the Schwinn 5-Speed Corvette |
| Letters | ?; typeset |
| Notes | This same artist drew covers for some of the Classics World Around Us comics and also Boys' Life magazine. |