"The Infinite Sea is young adult science fiction novel by Rick Yancey. It is the sequel to the 5th Wave.The novel provides detailed histories of the secondary characters from the previous novel. Instead of just narration from Cassie, as the previous book had, the narration shifts from the point of view of another teenage girl named Ringer."@en . . . . "The Infinite Sea"@en . . "320"^^ .