Bella Swan has a twin sister, Cassiopeia Swan, who was from another world. Before dying and being reborn as a Swan, Cassie was the grandaughter of Sirius Black. How will she adjust to this new life and new world? How will the Twilight books she read in the Muggle world help her? How will she keep her powers secret from her new sister? Does she even want to keep them a secret?
5 parts