| Issue | #18 |
| Published | November 1978 |
| Cover Price | 0.35 |
| Pages | 36 |
| Editing | Roger Stern |
| Notes | Cover penciling credit confirmed by John Byrne November 2004. |
| Characters | Tars Tarkas |
| Pencils | John Byrne |
| Inks | Rudy Nebres |
| Notes | Cover penciling credit confirmed by John Byrne November 2004. |
| Characters | Tars Tarkas; John Carter; Kantos Kan; Tardos Mors; Dejah Thoris |
| Synopsis | Tars Tarkas challenged for the leadership of the Thark |
| Script | Chris Claremont |
| Pencils | Frank Miller |
| Inks | Bob McCleod |
| Colors | Bob Sharen |
| Letters | Jean Simek |
| Notes | Tars Tarkas is the main character of this story |
| Reprinted | in John Carter (Atlantic Förlags AB, 1978 series) #6/79 |