House of Mystery #156
"Dial H for Hero" introduces teen genius Robby Reed and his extraordinary discovery: a mysterious dial that lets him transform into different superheroes by dialing "H-E-R-O." With art by Jim Mooney and lettering by Stan Starkman, this 1966 House of Mystery #156 delivers a fresh take on the superhero trope, as Robby takes on the Thunderbolt Gang—only to see their leader, Mr. Thunder, slip away. The cover by Jim Mooney captures the moment’s electric tension, setting the stage for what’s to come.
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Teen genius Robby Reed discovers a mysterious dial that can transform him into different super-heroes when he dials the letters "H-E-R-O". He uses his newfound powers to battle the Thunderbolt Gang, but their leader, Mr. Thunder, escapes.
Plot details indexed by the Grand Comics Database (CC BY-SA).