ACTION COMICS (1938) #351

ZHA-VAM! No, that’s not the sound effect of a load of nitro exploding! It’s the name of Superman’s latest, mightiest foe, exploding into the pages of Action Comics! He has the powers of Zeus, Hercules, Achilles, Vulcan, Apollo, and Mercury…and wait till you see what he does to the Man of Steel! During a meeting of The United Crime Syndicates, the mysterious and mighty Zha-Vam appears, claimng leadership. Can The Last Son of Krypton stop this magical menace?