When Julius Schwartz became the editor of "Superman" with issue #233 (Jan. 1971), he had O'Neil and artist Curt Swan streamline the Superman mythos, starting with the elimination of kryptonite. In 1973, O'Neil wrote revivals of two characters for which DC had recently acquired the publishing rights. A new series featuring the original Captain Marvel was launched with a February cover date and featured art by the character's original artist C. C. Beck. Later that same year, O'Neil and artist Michael Kaluta produced an "atmospheric interpretation" of the 1930s pulp hero in "The Shadow" series. In 1975, O'Neil wrote a comic book adaptation of the 1930s hero the Avenger. A revival of the "Green Lantern" title in 1976 was launched by O'Neil and artist Mike Grell.