At 19, Conway began scripting "The Amazing Spider-Man", succeeding Stan Lee as writer of one of Marvel's flagship titles. His run, from issues #111–149 (August 1972 – October 1975), included the landmark death of Gwen Stacy story in #121 (June 1973). Eight issues later, Conway and Andru introduced the Punisher as a conflicted antagonist for Spider-Man, as well as the Jackal. The Punisher became a popular star of numerous comic books and has been adapted into three movies. Conway additionally wrote "Fantastic Four", from #133–152 (April 1973 – Nov. 1974).