Action Comics Weekly lasted until the beginning of March 1989 and after a short break, issue #643 (July 1989) brought the title back onto a monthly schedule. Writer/artist George Pérez took over the title and was joined by scripter Roger Stern the following month.
As writer of the series, Stern contributed to such storylines as “Panic in the Sky” and “The Death of Superman“. He created the Eradicator in Action Comics Annual #2 and later incorporated the character into the “Reign of the Supermen” story arc beginning in The Adventures of Superman#500. The Eradicator then took over Action Comics as “the Last Son of Krypton” in issue #687 (June 1993).
Stern wrote the 1991 story wherein Clark Kent finally revealed his identity as Superman to Lois Lane.