What is the plot for Raven Rise?

"Raven Rise" is the ninth book in the Pendragon series by D.J. MacHale. In this installment, Bobby Pendragon and his fellow Travelers must battle against the evil Saint Dane as he attempts to manipulate and control various territories known as Quillan and Cloral. The book follows their adventures as they try to thwart Saint Dane's plans and protect the future of Halla.