"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 dedicated to protecting the world from the forces of darkness. The series blends elements of British folklore and mythology, exploring themes of good versus evil. The books are set in various locations across England and feature a rich tapestry of characters, including Merriman Lyon and other Old Ones. Each installment focuses on Will's journey as he learns about his powers and responsibilities while battling the Dark and its minions.