Southern Boundries, ( a frozen fanfic)

Taking place 18 years after the events of Frozen, the kingdom is at war with the Southern Isles with Hans, who has had Kristoff captured for the last 11 years. Meanwhile Anna and Kristoff have a sixteen year old daughter named Annalise who posses similar powers to her Aunt Elsa. When the kingdom discovers her powers, Elsa sends her to live with a secret society that her mother used to go in and out of the Royalty Society. Also, Annalise's older brother Hunter is at the Southern Isles in search of his father Kristoff, against his aunt's orders, next he meets a beautiful girl named Lillith something is wrong with her though and he just can't put his finger on it. What will happen next??