When she was only six years old, Puerto Rican Cecilia Reyes saw her father gunned down in a drive-by shooting. From that moment on, she dedicated her life to becoming a medical doctor. Soon after achieving her goal, her latent mutant powers awakened and she sought help from Charles Xavier
, founder of the X-Men
. He invited Reyes to join the X-Men but she declined, wanting to instead to continue working as a trauma surgeon at the Our Mother Mercy Hospital in New York City's South Bronx.