Title: The menace of Metallo
Description: Superman is the target of Lex Luthor's deadliest scheme. The cruel genius has poisoned criminal John Corbin. He withholds the antidote until Corbin makes a promise: he will let Luthor turn him into a robot powered by kryptonite. But once the creature named Metallo discovers that he is more machine than human, revenge fills his strange heart.
Subjects: Juvenile fiction, Superheroes
People: Superman (Fictitious character)