| Issue | #230 |
| Published | June 1975 |
| Cover Price | 0.50 |
| Pages | 68 |
| Editing | Murray Boltinoff; Paul Levitz |
| Notes | avg circ 242,726 |
| Characters | Superman; Batman; Superman, Jr.; Batman, Jr.; Deadman; The Challengers of the Unknown [Ace Morgan; Rocky; Red; Professor Haley]; Aquaman |
| Genre | superhero |
| Pencils | Ernie Chan [as Ernie Chua] |
| Inks | Ernie Chan [as Ernie Chua] |
| Notes | avg circ 242,726 |
| Reprinted | in Superman / Batman: Saga of the Super Sons (DC, 2007 series) #nn |
| Characters | Batman; Batman, Jr.; Superman; Superman, Jr.; Professor Roger Hanson; Lance Hanson; Mimaya; Paul Somerset; Jane Somerset (in flashback) |
| Synopsis | To keep them occupied, Superman and Batman send the super-sons on an expedition to a newly-discovered Mayan city in the Yucatan with Prof. Hanson and his son. There they meet the two inhabitants of the city and learn of their connection to the professor. |
| Genre | superhero |
| Script | Bob Haney |
| Pencils | Curt Swan |
| Inks | Tex Blaisdell |
| Notes | Feature bannered as "Superman and Batman and Their Sons" on splash page. The story also has three separate chapter titles: Part I - What the Satellite Saw; Part 2 - The Silent City; Part 3 - Sins of the Fathers. |
| Reprinted | in Superman / Batman: Saga of the Super Sons (DC, 2007 series) #nn |
| Characters | Aquaman |
| Genre | superhero |
| Script | George Kashdan |
| Pencils | Ramona Fradon |
| Inks | Ramona Fradon |
| Reprinted | from Adventure Comics (DC, 1938 series) #245 (February 1958) |
| Characters | Deadman; Johnny Double; Corina Stark |
| Genre | adventure |
| Script | Dennis O'Neil |
| Pencils | George Tuska (1-16); Neal Adams (17-23) |
| Inks | George Tuska (1-16), Neal Adams (17-23) |
| Reprinted | from Challengers of the Unknown (DC, 1958 series) #74 (June-July 1968) |