- Script
- Len Wein
- Pencils
- Bernie Wrightson
- Inks
- Bernie Wrightson
- Colors
- ?
- Letters
- ?
- Editing
- Joe Orlando (editor original)
- Job Number
- [J-1746]
- Genre
- terror-suspenso (horror-suspense)
- Characters
- La Criatura del Pantano [Swamp Thing; Alec Holland] (introducción, origen); Linda Holland; Matt Cable; Ferrett; Bruno; Anton Arcane (cameo, sin nombrar, solo la mano); 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
Origen de la Criatura del Pantano.