Another wanderer in the Capital Wasteland, Rosa Meitner carries 'Holy Water' from the Apostles of the Eternal Light, eager to share its miraculous properties with the world. Unbeknownst to her, the Holy Water's only real purpose is to spread 'Atom's Glow' and irradiate as many people as possible, to help elevate them to Ghoul-hood. Making Rosa an unwitting accomplice in the Apostles' greater aims.