Banished

Kit is proud to be a Blackhart, now she's living with her unorthodox cousins and sharing their strange lives. Especially since their home-schooling includes spells, fighting enemy fae and using ancient weapons. But it's not until she rescues a rather handsome fae prince, fighting for his life on the edge of Blackhart Manor, that her training really kicks in. With her family away on various missions, Kit must protect Prince Thorn, rely on new friends and use her own unfamiliar magic to stay ahead of Thorn's enemies.
As things go from bad to apocalyptic, fae battle fae in a war that threatens to spill into the human world. Then Kit pits herself against the Elder Gods themselves - it's that or lose everyone she's learnt to love.