The Secret of the North (Prequel): Daughter of the Wild

Fayra Kyna Korinne Nadezhda Genevieve Liliana Vadas-Blackburn-Beck mostly known as Fayra Vadas-Blackburn-Beck is the daughter of a queen of Skin-changers, of the White-wolves of the far North, of the Phoenixes who reside in Rhovanion or with the Skin-changers, of Darklings, a princess of Erebor named Kyna Beck, and the daughter of Arathorn, a Dunedain Ranger and descendant of Isildur. Fayra's life changed the day her mother was killed, she became hunted and had to hide.
Years later during a normal day with her father, they are attacked and he is killed. She flees with her step-mother and little brother to Rivendell, from there Fayra is sent to live with an old friend of her mother's, an elf king named Thranduil until she is old enough to claim her thrones over the Skin-changers, the Phoenixes, the white-wolves, and the Darklings.
Though she is not just sent there as a favor to her mother, his son is her betrothed, and that complicates things as time goes on. Will she keep herself shut off or will she let a certain elf prince in?

(I only own, Fayra, her story, the other characters I add-in, the white wolves, the Darklings, phoenixes, and the things I add-in to the story. Every other character belongs to J.R.R. Tolkien.)