Grace was born in 1503. She was an archeologist with very strong telepathic and telekinetic ablities.  In 1519, when she and Cuckoo (inhabiting the body of a Spanish nobleman) were in the newly-discovered Mexico, exploring the territory with Hernan Cortes’s conquistadores, sixteen-year-old Grace, who easily passed for a boy, posed as his valet. When the conquistadores attacked the Aztecs Grace, whose emerging psychic gifts were too immature to use as weapons, left with Cuckoo and some of the Aztecs that they had befriended, but the two were separated. Grace followed Cuckoo’s example, and learned to channel eldritch forced to enhance her powers. In doing this, she accidentally unleashed a demon called the Synraith. She managed to seal the dimensional rift from which it came, but as it now knew where our dimension was, it would eventually return. In 1615 Grace and Albert were in Japan protecting the Shogun during a coup. She later fought the Synraith a second time centuries later with Cuckoo and a younger Charles Xavier. They finally managed to destroy the creature during their third encounter with it, with the help of Adam and the X-Men.
