Two girls, different in every way except fate. Roseus is self-assured, a girl born to the Underground and raised by the seedy staff of the Marinette Hotel. She's always taken charge of her life, never one to be silenced or controlled. Mirelle is cautious, a sheltered girl leading a young Circle in Fallyn. She spent her life in the pages of grimoires, strengthening her connection to the Goddess, Hecate. New circumstances and old evils force these girls into each other's paths, forming a bond stronger than either girl has experienced before. While they race against time and old magic to break it, they consider that their lives may never be so simple again.