Spider-Man [Peter Parker]; Lizard [Dr. Connors]; Martha Connors; Billy Connors; Harry Osborn; Gwen Stacy; Maggia (villain); Silvermane (villain); Caeser Cicero (villain); Man-Mountain Marko (villain)
Silvermane believes that the petrified tablet contains the secret of the Fountain of Youth. He forces Dr. Connor to interpret the tablet and make the serum described therein. Silvermane drinks the untested serum - and it works!
Spidey, aware that Dr. Connors and his family are in danger from the Maggia, searches for them. The once-elderly Silvermane tries to convince Marko and Cicero that he is in fact a younger version of himself while Dr. Connors escapes and Spider-Man arrives. In the ensuing free-for-all Connors transforms into the Lizard ... and Silvermane just keeps getting younger.