Ever since they left Thies, the women had not stopped singing. As soon as one group allowed the refrain to die, another picked it up, and new verses were born at the hazard of chance or inspiration, one word leading to another and each finding, in its turn, its rhythm and its place. No one was very sure any longer where the song began, or if it had an ending. It rolled out over its own length, like the movement of a serpent. It was as long as a life.