Genre: horror-suspense; Characters: Swamp Thing [Alec Holland] (intro, origin); Linda Holland; Matt Cable; Ferrett; Bruno; Anton Arcane (cameo, unnamed, hand only); The Conclave
Synopsis: When Ferrett and Bruno blow up Alec Holland's lab they create the Swamp Thing. When they return to dispose of Alec's wife Linda, the Swamp Thing is there to stop them.
Reprints: show reprint note before migration
in Mundo de Aventuras Especial (Agência Portuguesa de Revistas, 1975 series) #9 (Julho 1976) [black & white]
in DC Special Series (DC, 1977 series) #2 (September 1977)
in Gigant (Semic, 1977 series) #1/1983 (uke 5 1983)
in Roots of the Swamp Thing (DC, 1986 series) #1 (July 1986)
in DC Comics Classics Library: Roots of the Swamp Thing (DC, 2009 series) #[nn] ([May] 2009)
Origin of Swamp Thing.
Colorist credit from the letter page of Swamp Thing (DC, 1972 series) #4.