Starbound

Sixteen year old Lyssa Lockwood moves to an unknown but picturesque little island called Kettle Falls after her grandmother's death. She is supposed to stay with an Aunt she has not met before, the only living relative left. She discovers that everything she has known is a lie. Lyssa's memories from when she had been to the island have been wiped. Aunt Raven is not ready to reveal the truth for Lyssa's protection. All she can tell is that Lyssa had come to Kettle Falls when she was ten and left when she turned fourteen. She meets a boy with otherworldly beauty called Kaius, who infuriates her but seems familiar. He is the only one who knows why she does not remember her past. It's too bad he doesn't seem to be human and is in no hurry to help her.