Killala was a female member of the Maltusian race, the parent species that would later spawn the Guardians of the Universe, the Zamarons and the Controllers. Amongst her people, Killala was the first who managed to manipulate The Glow which was the Green Flame of Oa. This was the power of will from the Emotional Spectrum which she did so with the power of her own mind. Thus, she became an ancestor of the Guardians who would use this new found power to create a police force to patrol space and became known as the Green Lantern Corps.