In the opening sepuence of "one breath" Margret Scully recalls that her daughter Dana, "unlike her older sister," was a tomboy. We meet the grown-up Melissa scully minutes later, when she shows up at her dying sister's bedside to commune with her spirit and dowse for her soul. Clearly of the opposite opinion from her sister when it comes to matters paranormal, Melissa Scully at first irritates Mulder with her New Age views and her "harmonic converhence" babble. But when the chips are down for Mulder, she convinces him that the path of the truth, for him and for Dana, lies in light and not in shadow. Murdered by Krycek in a case of mistaken identity, her memory lingers with Dana Scully, who tearfully tells her partner, "she died for me"