"Gods and Mortals" collects the first seven issues of Perez's 1980's run. Together, these issues are regarded as the definitive account of Diana Prince's origin story, exploring her creation on Paradise Island, her first journey into man's world and her first clash with Ares, the god of war. There have been many new takes on that story since, but it's hard to touch this one (especially with an artist as talented as Perez at the helm).
After taking Despero to the authorities, Wonder Woman and Superman came across the mysterious Pandora, someone Wonder Woman was familiar with. She believed Superman could use her box to trap the evil she unleashed in ancient times; but when Superman touched it, he was overwhelmed by its power. While Pandora took the box and left, the two heroes received news that a new superhuman, Shazam, was entering the borders of Kahndaq. Their confrontation with Shazam turned violent until the rest of the Justice League and the Justice League of America intervened to defuse the situation. Suddenly, Dr. Light lost control of his powers and began absorbing Superman's solar energy, unleashing an energy beam at Wonder Woman. In a fit of anger, Superman killed Dr. Light with his heat vision, an action that caused a fight between the two Leagues.