Riverkeep

Fifteen-year-old Wulliam is about to assume his family's responsibilities as Riverkeep, managing the dangerous waters and tending to its dead. When his father is possessed by a dark spirit, Wulliam learns that a cure may be hidden within the great sea-beast called the mormorach. Embarking on a perilous journey downriver, Wulliam seeks to save his father and uncover the truth, setting the stage for an epic adventure.