| Issue | #21 |
| Published | September 1975 |
| Cover Price | 0.25 |
| Pages | 36 |
| Editing | Len Wein |
| Genre | occult |
| Pencils | Gil Kane |
| Inks | Frank Giacoia |
| Letters | Gaspar Saladino |
| Characters | Scavenger (origin), Roland Duhl (intro), Elsbeth Duhl (intro), Klonus, Mortak, Thog the Netherspawn |
| Genre | occult |
| Script | Steve Gerber |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Colors | Janice Cohen |
| Letters | Joe Rosen |