Following his first continuing-character story for Marvel, with his script for the jungle lord Ka-Zar in "Astonishing Tales" #3 (Dec. 1970), Conway began writing superhero stories with "Daredevil" #72 (Jan. 1971). He quickly went on to assignments on "Iron Man", "The Incredible Hulk", and both "The Inhumans" and "The Black Widow" features in the split book "Amazing Adventures". He scripted the first Man-Thing story, in 1971, sharing co-creation credit with Stan Lee and Roy Thomas. Conway eventually scripted virtually every major Marvel title, as well as co-create (with writers Roy & Jean Thomas and artist Mike Ploog) the lycanthropic lead character of the feature "Werewolf by Night", in "Marvel Spotlight" #2 (Feb. 1972); and write the premiere issue of Marvel's "The Tomb of Dracula", introducing the longstanding literary vampire into the Marvel universe.