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
Captain Marvel (DC Comics) low-print run in the fall of 1939 as an ashcan copy created for advertising and trademark purposes. Shortly after its printing, however, Fawcett found it could not trademark "Captain Thunder", "Flash Comics", or "Thrill Comics", because all three names were already in use. Consequently, the book was renamed "Whiz Comics", and Fawcett artist Pete Costanza suggested changing Captain Thunder's name to "Captain Marvelous", which the editors shortened to "Captain Marvel". The word balloons in the story were re-lettered to label the hero of the main story as "Captain Marvel". "Whiz Comics" #2 (cover-dated Feb. 1940) was published in late 1939.