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Reality Undetermined
At present, Gayle Marsh (Prime Earth)'s original reality has yet to be revealed. In order to follow the Naming Conventions, it has been suggested that, if the character's source reality is revealed, this page be moved to reflect that by indicating their reality designation in parenthesis. It is strongly recommended that gallery, appearances and quote pages should not be created until the final destination page is established.
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Gayle Marsh accidentally landed on Prime Earth through a dimensional breach. Supergirl and Vibe managed to restrain her. Once she telepathically communicated with Supergirl, she agreed to stay in the A. R. G. U. S. headquarters, believing it to be a safe place.[1]

A while later, though, she was transferred to a Project Cadmus Black Site, jailed and experimented on. Gayle was weakened and mind-broken when someone put in her head something called "the Key to the Phantom Zone". The "Key" said Xa-Du could fix her mind if she went to the Phantom Zone, but she'd need Supergirl to get there. Gayle used her telepathy to get Supergirl break her out, and then she used the Girl of Steel to teleport herself in the Zone.[2]

There she found out she fell into a trap. Xa-Du was a Kryptonian mad scientist and criminal had no intention to help her. He needed her - the "Aethyr Switch" - to open a rupture into the real world and escape the Zone. Wanting to prevent this, Gayle quickly wrapped herself in a psionic cocoon and went into a self-imposed trance. She woke up when Supergirl, who had also been imprisoned by Xa-Du, found her.[3]


Gayle wields vast, untapped psychic powers.



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Superman Family member
This character is or was an incarnation of or an ally of Superman, and a member of the Superman Family. This template will categorize articles that include it into the "Superman Family members" category.