- Bob Haney
- Dick Dillin
- Murphy Anderson
- Superman; Batman; Batman, Jr.; Superman, Jr.; Alfred Pennyworth; James Gordon; Danny Orr; Jack Orr; Mark King; Anne King (in flashback); Brazos
- The super-sons meet Danny Orr when he takes someone else's car for a joyride after he finds out his father is really his adopted father. When his newly-discovered father, Mark King, sends him to his Central American emerald mine, Danny, Superman, Jr., and Batman, Jr. discover the kind of man Mark King is.
- Reprints: show reprint note before migration
The wives of Superman and Batman appear in this story, but their identities are not made clear. The story also has three separate chapter titles: Part I - Sharper Than a Serpent's Tooth; Part 2 - Rendezvous on Massacre Island; Part 3 - Just an Ordinary Hero.
Includes a letter from Bob Rozakis
article about the DC Comicmobile- driving through neighborhoods like an ice cream truck and selling comic books.