Sabriel by Garth Nix #20BOS26-6

There is nothing like an intrepid and self-aware heroine to take us lands away. Sabriel has attended Wyverley College, a boarding school for young ladies in Ancelstierre, since she was five and is now a graduating Sixth Form prefect, having excelled in all the expected coursework along with the less expected subject of magic. Her father is known as the Abhorsen, a powerful necromancer, and unusually has just failed to appear for a visit to his daughter.