Fifteen-year-old Morwenna lives in Wales with her twin sister and a mother who spins dark magic for ill. One day, Mori and her mother fight a powerful, magical battle that kills her sister and leaves Mori crippled. Devastated, Mori flees to her long-lost father in England. But danger lurks... She knows her mother is looking for her and that when she finds her, there will be no escape.