The young girl was abducted and trafficked to an abandoned factory in Cuba, where Klarion activated her Meta-Gene with his sorcery and applied a mystic control brand to her forehead. Seeing no practical use for a meta-human who could not breathe on land, Klarion turned her into mist and combined her essence into an amalgamation of writhing flesh. Upon her assimilation, the flesh monster developed gills.
After Zatanna defeated the flesh monster and freed all the kidnapped meta-teens from Klarion's brand, Beast Boy heard her suffocating. Seeing her gills, he realized she couldn't breathe air and quickly brought her underwater. He summoned the Bio-Ship and nudged her towards a compartment inside.[1]
After dropping off the trafficked meta-teens at the Meta-Human Youth Center, Beast Boy showed Aquaman the "special case". Aquaman noted that the center was not equipped for water-breathers and that alternate arrangements would have to be made.[1]
Dolphin is an underwater super-hero with extra-terrestrial origins who becomes a member of the Aquaman Family. Meeting Aquaman during a battle with Charybdis, the two develop a romantic connection. Following their break-up, she marries Tempest and they have a child named Cerdian.
