“Reign of the Supermen” continued from SUPERMAN: THE MAN OF STEEL (1987-2004) #25 The one true Man of Steel has returned! Now, Superman, along with the new Superboy and the man called Steel, must prepare themselves for the final battle with the treacherous Cyborg-Superman and his sinister accomplice, Mongul. Story continues in ADVENTURES OF SUPERMAN (1939-2006) #504.