Sister Marian is a witch hunter of the highest order, a Mother Superior, and a heretic guided by a Goddess the Church refuses to acknowledge. When the Holy Father brands her order blasphemers, Marian strikes a dark bargain to become their personal enforcer.

As she delivers murderous judgement night after night in the city of Vespers, she can feel her soul fracture…but what else can she do with the lives of her sisters at stake?