Nearly killing the first boy she kissed, Anna-Marie has always struggled to control her mutant gift. With the ability to absorb powers and memories at a cost, she ran away from home to avoid hurting others. She was taken in by Mystique who became a mother figure for the conflicted girl and recruited her to the Brotherhood of Evil Mutants. After permanently absorbing the powers of Ms. Marvel, she realized that she had inherited the hero's personality as it struggled for control of her mind. Unable to control her thoughts, and fearing for her own sanity, she turned to Professor X for his telepathic help, eventually joining the X-Men and redeeming herself.