In the Middle Ages, the sorcerers who would become the Mys-Tech Board of Directors were granted immortality by the demon Mephisto in exchange for the continued sacrifice of mortal souls. One of these men, Ranaulph Haldane, had a daughter named Shevaun in the modern period. When Shevaun was 21 years old, Mephisto killed her father for betraying him. Shevaun then saw the Angel of Death arrive for her father. The angel placed a fragment of the universe itself within Shevaun, and gave her a suit of high-tech body armor to control her new power. She fought Mys-Tech's agents and other techno-magical monsters across the Earth, in other dimensions, and in the afterlife.