Justice League of America (1960 1st Series) #136

Cover pencils by Ernie Chan, inks by Frank Giacoia. Crisis on Earth-S!, script by E. Nelson Bridwell (plot) and Martin Pasko (script), pencils by Dick Dillin, inks by Frank McLaughlin

As King Kull's plan continues, the JLA,JSA and Squadron of Justice teams thwart the next phase; Johnny Thunder and his Thunderbolt (with Mercury), meanwhile, meets up with a powerless Billy and Mary Batson, and Freddy Freeman, who have been wondering with all that has been occuring why they haven't been able to summon Shazam's mystic thunderbolts to change them into the Marvel Family; Johnny's Thunderbolt fixes this by using his magic to change them, and now the Marvels ready themselves to join in the fight.