"The Dark is Rising Sequence" is a series of five fantasy novels written by Susan Cooper. The story follows a young boy named Will Stanton, who discovers he is one of the Old Ones, a group of ancient beings tasked with protecting the world from the forces of Darkness. The series blends elements of British folklore and mythology, exploring themes of good versus evil and the importance of courage and friendship. The books are set in various locations across England and feature a rich tapestry of characters, including Merriman Lyon, a mentor figure, and other Old Ones. Each installment unfolds during different seasons, with the central conflict revolving around the battle against the Dark and the quest to maintain balance in the world.