Selene is a "psychic vampire" with the ability to sustain herself by psionically draining the life force of other human beings into herself. If she drains a person's entire life force, the victim dies and crumbles to dust in seconds. If Selene only drains the victim's life force partially, she achieves a measure of psychic control over her victim's mind, thereby subverting them to her will. Through unknown means Selene can also cause a human being to become a psychic vampire like herself, but be subordinate to Selene's own will. Selene's youthful appearance and vitality depends upon her absorbing the life forces of one or more people on a regular basis. This restores Selene to a youthful and healthy appearance when she has been injured, or when she over-exerts her other powers, and sustain her centuries-long life. A side-effect of this process is that Selene remembers the life of anyone she absorbs.