Gisele was in charge of the underwater research base on Flydon Maxima. She looked like a twelve-year-old child with black eyes and dark bobbed hair. She was a mystery, one of a kind. The fact that she never aged was attributed to a rare medical condition termed Adulecentia Perpetus. After the Doctor destroyed the Eternity Crystal and defeated the Darksmith Collective, she left his company to pursue her studies at the Space Brain. (PROSE: The End of Time)