What happens at the end of Pendragon raven rise?

At the end of "Pendragon: Raven Rise," Bobby Pendragon faces a climactic battle against the forces of the evil Saint Dane, who seeks to destabilize the territories. Bobby and his friends manage to thwart Saint Dane's plans, but not without significant sacrifice and loss. The story concludes with a sense of uncertainty about the future, as the characters prepare for the challenges that lie ahead in their ongoing fight against darkness. The narrative sets the stage for the next installment, highlighting themes of friendship, sacrifice, and the struggle between good and evil.