"Ah, Valkyries are goddesses of battle from Norse mythology," Artemis explained. "Skuld happens to be one of those goddesses. Makes one wonder about just how strong these ties are that bind us to this place. If you can't break them Skuld, certainly there must be some sort of powerful device to be found and destroyed."

He thought for a moment. "I've been outside the walls twice, and yet I've been unable to stay there. It's very strange indeed..."