Billie Eldridge received her powers when an unconventional experiment involving medieval weapons and a glowing meteorite didn’t go as expected.
The result was an inobtainium mace which was genetically bonded to Billie. In anyone else’s hands, the mace was just an ordinary mace, if a bit heavy and more or less invulnerable. In Billie’s hands, the mace became paradoxically inertialess and of infinite inertia. While she could swing the weapon with ease, the weapon hit with the power of a locomotive moving at the speed of light.
Determined to use this happy accident to the benefit of Paragon City, Billie became…
Captain Hero!
