In "Adventure Comics" #346 (July 1966), Jim Shooter, 14 years old at the time, wrote his first Legion story. Soon thereafter, Shooter became the regular writer of the Legion stories, with Curt Swan, and later Win Mortimer, as artist. Shooter wrote the story in which Ferro Lad died—the first "real" death of a Legionnaire (although Lightning Lad had been believed dead for a while before)—and introduced many other enduring concepts, including the Fatal Five, Karate Kid, Princess Projectra, Shadow Lass, the Dark Circle, Mordru and the "Adult Legion", a conjecture regarding what the Legionnaires would be like when they grew up.