- Script:
- Stan Lee
- Pencils:
- Steve Ditko
- Inks:
- Steve Ditko
- Colors:
- ?
- Letters:
- Sam Rosen
- Genre:
- superhero
- Characters:
- Spider-Man [Peter Parker]; Scorpion [Mac Gargan] (Intro see notes; Origin); Liz Allan; Flash Thompson; Aunt May Parker; J. Jonah Jameson; Dr. Farley Stillwell (Death)
- Synopsis:
- J. Jonah Jameson pays Dr. Stillwell to turn Mac Gargan into the Scorpion to try to capture Spider-Man. Stillwell's formula makes Gargan become more evil than he originally was and the Scorpion goes on a rampage and is finally stopped by Spider-Man.
- Reprinted:
- in Marvel Tales (Marvel, 1966 series) #15
- in Marvel Tales (Marvel, 1966 series) #158
- in Marvel Masterworks (Marvel, 1987 series) #5
- in Spider-Man Megazine (Marvel, 1994 series) #5
- in Essential Spider-Man, The (Marvel, 1996 series) #1
Mac Gargan appeared in the previous issue in three panels, un-named.