- Script
- Edgar Allan Poe (short story); Al Hewetson (adaptation)
- Pencils
- César López (credited as Cesar Lopez)
- Inks
- César López (credited as Cesar Lopez)
- Letters
- ?
- Genre
- horror-suspense
- Reprints
Adaptation of the short-story "The Murders in the Rue Morgue" by Edgar Allan Poe.
- Script
- Al Hewetson (credited as Howie Anderson)
- Pencils
- Jesús Durán (credited as Duran) (signed as Jesús Durán)
- Inks
- Jesús Durán (credited as Duran) (signed as Jesús Durán)
- Letters
- ?
- Genre
- horror-suspense
- Reprints
Continued from Nightmare #19.