The Last Star is a young adult science fiction novel written by American author Rick Yancey. It was published on May 24, 2016 by G. P. Putnam's Sons. It is the third and final novel in The 5th Wave trilogy, preceded by The Infinite Sea. The Last Star concludes the story of 16-year-old Cassiopeia "Cassie" Sullivan, battling against the aliens that have invaded Earth. Unlike the previous books, the book received mixed-to-negative reviews from reviewers, who criticized the book's ending. Source: Wikipedia (en)