Captain Marvel (DC Comics) is forced to return Billy's power after the Highfather of New Genesis intervenes in the conflict. In Year Five, Shazam's relationship with Harley is complicated when she confronts him about being in the Regime despite their growing tyranny. In the traditional "Shazam!" stories, Captain Marvel often fights evil as a member of a superhero team known as the Marvel Family, made up of himself and several other heroes: empowered by the wizard Shazam. The main core of the Marvel Family were Captain Marvel's sister Mary Marvel, the alter-ego of Billy Batson's twin sister Mary Batson (adopted as Mary Bromfield), and
Captain Marvel (DC Comics) "The World's Mightiest Mortal", starting with "Shazam!" #15 (December 1974). As all subsequent toys and other merchandise featuring the character have also been required to use the "Shazam!" label with little to no mention of the name "Captain Marvel", the title became so linked to Captain Marvel that many people took to identifying the character as "Shazam" instead of "Captain Marvel". The "Shazam!" comic series began with "Shazam!" #1 (Feb. 1973). It contained both new stories and reprints from the 1940s and 1950s. Dennis O'Neil was the primary writer of the book. His role was later taken over by writers