| Issue | #8 |
| Published | January-February 1974 |
| Cover Price | 0.20 USD |
| Pages | 36 |
| Editing | Joe Orlando |
| Characters | Swamp Thing [Alec Holland] |
| Genre | horror |
| Pencils | Bernie Wrightson |
| Inks | Bernie Wrightson |
| Reprinted | in Roots of the Swamp Thing (DC, 1986 series) #4 (October 1986); in DC Special Series (DC, 1977 series) #20 |
| Characters | Swamp Thing [Alec Holland]; Ezekiel; Hector; Jason; Mayor Mutteridge; Lydia; Jody; M'Nagalah; Abraham (flashback) |
| Synopsis | In a small mining town the Swamp Thing discovers a monster lurking in tunnel 13. |
| Genre | horror |
| Script | Len Wein |
| Pencils | Bernie Wrightson |
| Inks | Bernie Wrightson |
| Reprinted | in DC Special Series (DC, 1977 series) #20 (January-February 1980); in Roots of the Swamp Thing (DC, 1986 series) #4 (October 1986) |