Captain Marvel Jr. coma after being thrown into the lake by Nazi, and Freddy is found to have a severely injured spine and a broken leg, which will prevent him from ever walking again. After a second attack from Captain Nazi, the injured Freddy is taken to the wizard Shazam by Captain Marvel and his sister Mary Marvel, who both grant the boy the power to become Captain Marvel Jr. However, Jacob dies, and Captain Marvel Jr. goes on a rampage against Captain Nazi until the other Marvels intervene. Nazi and Captain Marvel Jr. would become arch-enemies, regularly pitted against one another. Junior
Adventures of Captain Marvel this as one of the most outstanding of all serials and Republic's "masterpiece". He writes that Tyler's "striking performance...remains in thousands of minds as the most memorable serial hero of all time – bar none". The characters of Betty Wallace, Whitey Murphy, and John Malcolm all appeared in the Fawcett comics in the 1940s, beginning with "Capt. Marvel And The Temple Of Itzalotahui" ("Whiz Comics" #22, Oct. 3, 1941) featuring Murphy and Malcolm; Murphy made several appearances in the 1970s DC Comics incarnation of Captain Marvel, as featured in the comic series "Shazam!" and "World's Finest Comics". Fawcett also published