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!
On-sale date from Comic Reader (Street Enterprises, 1973 series) #109, August 1974.
- The Fantastic Secret of the Petrified Tablet! - Alterations from original by John Romita.