Cover: Neal Adams & Jack Adler

Superboy #176

Jul 1971 · DC · 0.15 USD

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In "The Secret of Superboy's 'Sister'," Superboy welcomes Kathy into the Kent household after her mother is injured in an accident, unaware that her life is about to take a startling turn. When Kathy absorbs the knowledge of a space-brain, she gains extraordinary mental abilities—leaving both her and Superboy to wonder what this sudden change truly means. Written by Leo Dorfman and illustrated by Bob Brown with inks by Murphy Anderson, this 1971 tale features a cover by Neal Adams and Jack Adler.

Contains 2 stories

The Secret of Superboy's "Sister"

15 pp · Superhero

Superboy [Clark KentKal-El]Martha KentJonathan KentKathy WarrenLisa WarrenTruhls

When Kathy Warren is taken in by the Kents after her mother’s accident, her life takes a mysterious turn—her mind begins to absorb knowledge from an otherworldly source, unlocking abilities that leave even Superboy, Martha, and Jonathan Kent stunned. As Kathy grapples with the sudden power, the truth behind her connection to a space-brain begins to unfold, drawing her closer to secrets that may change everything.

Invisible Invader!

7 pp · Superhero

Legion of Super-Heroes [Chemical King [Condo Arlik]Invisible Kid [Lyle Norg]Mon-El [Lar Gand]Ultra Boy [Jo Nah]Cosmic Boy [Rokk Krinn]]Superboy [Kal-ElClark Kent]

In "Invisible Invader!", the Legion of Super-Heroes faces a mysterious thief who vanishes right before their eyes, stealing from a high-profile event with eerie precision. When Invisible Kid realizes the criminal uses the same chemical formula that grants him his own power, he must race to find a counteragent—knowing that the solution could become a weapon, not just a cure. With Superboy and his fellow Legionnaires on the case, the hunt for the invisible foe becomes a test of trust, ingenuity, and the fine line between power and vulnerability.