Fics like The Light of Prometheus

When a buried Luthor “legacy” alert triggers, Lena uncovers one of Lex’s last private labs, and inside, the unthinkable: a living child suspended in stasis, half Kryptonian and half Luthor. With Supergirl’s help, she pulls the boy out of the tank and into the light. Together, they must decide what makes someone alive: blood, creation, or choice. Lena and Kara raise Superboy AU

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