Superman #21

In "The X-Alloy," Superman investigates a mysterious explosion at the Lingle Steel Corporation, where a new metal called X-Alloy has drawn the attention of Clark Kent, Perry White, and Sgt. Casey. As the secret behind the alloy's creation unravels, Superman uncovers a web of espionage hidden within the factory walls—led by the enigmatic Carlton Graul.

In "The Four Gangleaders," Lois Lane takes on a dangerous investigation into a ruthless quartet of gang leaders, setting the city on edge with her bold reporting. As tensions rise and the lines between rival factions blur, Superman steps in to protect the innocent while the truth behind the gang war begins to unravel.

In "The Robber Knight," Superman investigates a string of thefts from Lacey's Department Store, where Lois Lane is wrongly arrested for wearing a stolen mink coat. As Clark Kent digs deeper, he uncovers that Lucy Trent, a former employee, may be hiding the truth — and that a mysterious figure known as Sir Gauntlet, a man with a noble past and a shadowed motive, could be behind the crimes.

In "The Ghost of Superman!", Superman takes on a deadly game of shadows when the murder of corrupt street boss Sam Jackson sends shockwaves through Metropolis. With a trail of lies and a lone witness in the form of the slippery Blinky Moxby, Superman must go to extraordinary lengths—posing as a ghostly menace to trap the real killer—while navigating a web of criminal conspiracies involving Mike Chandler, Knuckles, and a host of familiar foes, including Luthor, the Ultra-Humanite, and even Hitler and Tojo in cameos.