The Pendragon's Challenge

With only four days until Cade is to be crowned High King of the Britons, the combined might of gods and men are set to prevent his ascension. Once again the companions are scattered as the struggle against dark forces--both old and new--threatens to overwhelm them.
The Pendragon's Challenge is the seventh book in The Last Pendragon Saga.

The Complete Series Reading Order: The Last Pendragon, The Pendragon's Blade, Song of the Pendragon, The Pendragon's Quest, The Pendragon's Champions, Rise of the Pendragon, The Pendragon's Challenge, Legend of the Pendragon.