Spoilers! Wow. Anna is actually Annabelle, Charlie's twin sister. (I thought Charlie would turn out to be alive . . . not terribly far off.) Charlie had an imaginary friend -- Belle -- who wasn't so imaginary after all. Anna hates Grace because Grace was a "sister" to Charlie, a role that Anna should have filled. Alexi, Annabelle and Charlie's mother, kept Charlie but put Annabelle up for adoption. Why? Not clear yet. Charlie dies (bizarrely) after a fall in a 200 meter race. She'd been gone for six years, shows up in her little village, races against Grace, trips on shoelace, falls, dies!!!!! Anna tries to kill Grace by burning down her house. Anna survives, goes to London to visit Esme. Someone (Anna?) seems to try to kill her in London by pushing her in front of a subway. Grace returns to her cottage, under repair, and spends the night. Anna sneaks in and chains Grace to her bed. Workers are coming Monday, so...