- Script
- Dan Mishkin
- Pencils
- Bo Hampton
- Inks
- Scott Hampton
- Letters
- ?
- Genre
- horreur-suspense (horror-suspense)
- Characters
- Swamp Thing; Phantom Stranger; Nat Broder (crystal entity)
- Reprints
Les 2 histoires originales sont réunies en un seul récit. [The 2 original stories are merged into a single one.]