It’s too bad that serum didn’t work…
Peter Parker, the Spectacular Spider-Man (Vol. 1) #40
Published: c. December, 1979?
Cover Date: March, 1980
“The Terrible Turnabout!”
Writer: Bill Mantlo
Artist: Frank Springer
Inker: Ricardo Villamonte
Letterer: Diana Albers
Colorist: Ben Sean
Spider-Lizard!!!