Plot: Den and Harrison join the fight against the Betrayer giving the Casterwills and the Team time to regroup, but the Betrayer's tricks are too strong, until Lok manages to powerbond with the Legendary Titan Pendragon and recalls his father's warning in Tír na nÓg, and also calls upon the Legendary Titan Quetzalcoatl. But even then the Betrayer seems too strong and he finally manages to activate the Spiral Mark