Super DC Giant #S-24

In "The Girl with the X-Ray Mind!", Supergirl steps in when Jo, a young woman with emerging telepathic abilities, is turned down by the FBI despite her remarkable E.S.P. talents. Determined to help, Supergirl journeys into the past to uncover the truth behind Jo’s powers—only to discover a surprising connection to Lex Luthor and a secret experiment that changed her life.

In a twist of fate and mistaken identity, Dick starts noticing eerie parallels between Lena and Supergirl, leading him to suspect the truth—only to stir jealousy in Linda. When Lena unexpectedly confirms her secret to Dick, the revelation sends shockwaves through their fragile dynamic.

In "The Forbidden Weapons of Krypton!" from Super DC Giant #S-24 (1971), Kandorian scientist Lesla-Lar swaps places with Lena Thorul and unleashes Zod, Jax-Ur, and Kru-El from the Phantom Zone, arming them with a long-buried cache of Kryptonian weapons. Forced to retreat by their overwhelming power, Supergirl turns to an unlikely ally—Lex Luthor—whose own sister is trapped in Kandor, setting the stage for a tense alliance.

In "The Super-Powers of Lex Luthor!", the cunning genius teams up with escaped Phantom Zone villains who grant him incredible powers—only for the alliance to fracture when they turn on him, aiming to expose Superman, Supergirl, and even Luthor himself to Gold Kryptonite. With the stakes rising, Luthor must decide where his loyalties lie as he helps stop the villains and ultimately surrenders to save his sister Lena from being trapped in Kandor.