Action Comics #183

In a twist of science and sabotage, Lex Luthor devises a chilling plan after discovering that bullets hitting Superman’s body transform into Kryptonite. Armed with tons of the altered metal, he sets a deadly trap, daring the Man of Steel to face him in a duel that could end with the hero’s downfall.

In "The Stamp of Doom!" from Action Comics #183, an imposter takes over an artist’s commission to immortalize Bill on a new postage stamp, using the opportunity to sabotage Bill’s mission protecting an ivory caravan through the jungle. With the stakes rising and trust unraveling, Bill must outwit a clever fraud before the stamp—and his reputation—become a permanent mark of deception.

In "The Showboat of Space!", Dr. Kardak's groundbreaking invention—a device that nullifies gravity—sparks a mystery as rare materials needed to build it vanish one by one, all linked to the same traveling Show-boat rocket. With the stakes rising and the trail leading through the stars, the race is on to uncover who's behind the thefts before the device falls into the wrong hands.

In "The Jinx Saddle!", a cursed horse saddle—once the final perch of a hanged outlaw—sparks fear in a quiet town, blamed for the fatal fall of miner Jeb Peters. When the Vigilante takes up the saddle to test the legend, he sets out to prove the so-called curse is nothing more than superstition.