Sabriel

by Garth Nix

Ever since she was a tiny child, Sabriel has lived outside the walls of the Old Kingdom, away from the random power of Free Magic, and away from the Dead who won't stay dead. But now her father, the Mage Abhorsen, is missing, and to find him Sabriel must cross back into that world. Though her journey begins alone, she soon finds companions: Mogget, whose seemingly harmless feline form hides a powerful and perhaps malevolent spirit; and Touchstone, a young Charter Mage long imprisoned by magic

ISBN: 9780060273224