Moana (demigod killer)

Once Moana was free form her island she did set off to find Maoi but she had different plans for him then helping I’m restore the heart. Her grandmother had taught her sorcery and told her that if she killed Maoi she would get his magic. Moana succeeded and dyed dark magics to defeat the fire demon and restore ti-fit. However because of her murder and use of dark magics her mind was twisted and she murdered her whole island by accident. It is said she lives their alone forever in regret.