
Sister Mary Edith is not secretive about her past. She was born Elsa Kozlowski in Krakow, Poland in the late 1920s. Though she and her parents were Catholic, her mother's grandparents were Jewish, and after the German invasion of Poland, she and her parents were declared mischlinge and moved into the ghetto, and later, sent to Płaszów. During her childhood in the ghetto, she was attacked by a small group of soldiers, and it was in that moment that her powers first manifested. With the force of her mind, she disabled the soldiers, killing one of them. She fled the scene, and her family, terrified of repercussions, kept her hidden. Her mother, fearing that her daughter's powers were unholy, made Elsa swear to never use them. After the Krakow ghetto was liquidated, she was sent to the Płaszów camp with her mother; she would never see her father again. For nearly two years at Płaszów she kept her word to her mother, keeping her powers a guarded secret. Though her mother would die in the camp, Elsa survived to see Płaszów liberated.
After the liberation of Płaszów, Elsa took confession for the first time in nearly five years. Among her confessed sins, she admitted to the priest that she had sinful, supernatural abilities. The priest comforted her, and for the first time, she was told that her powers were a gift, rather than a curse. The priest connected her with sisters of the Order of Cupertino, and Elsa was brought to America in 1948. She took her vows soon after, and came to the convent in Paragon City, finding comfort and support with others like her. She began to work in the library of Saint Joseph's School for Girls (as SJS was known at the time), and has been here ever since.
Sister Mary Edith's powers are put to good use tending to the library, shelving dozens of books at once and generally keeping things in order. However, with age, her mind is not as sharp as it once was. Though she keeps the library tidy, and can easily recall any book she's ever read, the new computerized cataloging system is quite beyond her. She seems to have a problem keeping up after Sister Salvation, the young nun who constantly seems to be there, making a mess of her library.