Everything you need to understand or teach Abhorsen by Garth Nix.
Abhorsen is the third novel in The Abhorsen Trilogy series by author Garth Nix. In this novel, the Abhorsen-In-Waiting, Lirael, and Prince Sameth, who is a Wallmaker, must confront and bind the evil spirit Orannis before it can destroy all life.
It turns out the Ninth Power, which is Orannis, was broken into two pieces and buried inside of two silver hemispheres at the beginning of time. The two hemispheres were...